I found the octoprint.log..... at the moment I am printing parts:
here it is :
2019-05-13 07:36:53,428 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 07:36:53,436 - octoprint.server - INFO - --- Log roll over detected ---------------------------------------------------
2019-05-13 07:36:53,437 - octoprint.server - INFO - OctoPrint 1.3.10
2019-05-13 07:36:53,443 - octoprint.plugin.core - INFO - 16 plugin(s) registered with the system:
| Action Command Prompt Support (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/action_command_prompt
| Announcement Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/announcements
| Anonymous Usage Tracking (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/tracking
| Application Keys Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/appkeys
| Backup & Restore (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/backup
| Core Wizard (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/corewizard
| CuraEngine (<= 15.04) (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/cura
| Discovery (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/discovery
| Force Login (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/forcelogin
| Logging (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/logging
| Pi Support Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pi_support
| Plugin Manager (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pluginmanager
| Printer Safety Check (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/printer_safety_check
| PSU Control (0.1.8) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_psucontrol
| Software Update (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate
| Virtual Printer (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/virtual_printer
2019-05-13 07:36:53,470 - octoprint.environment - INFO - Detected environment is Python 2.7.13 under Linux (linux2). Details:
| hardware:
| cores: 4
| freq: 900.0
| ram: 918192128
| os:
| id: linux
| platform: linux2
| plugins:
| pi_support:
| model: Raspberry Pi 2 Model B Rev 1.1
| octopi_version: 0.16.0
| python:
| pip: 19.0.1
| version: 2.7.13
| virtualenv: /home/pi/oprint
2019-05-13 07:36:53,471 - octoprint.server - INFO - ------------------------------------------------------------------------------
2019-05-13 07:37:02,643 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 07:51:53,431 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 07:52:02,572 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 08:06:53,433 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 08:07:02,568 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 08:21:53,435 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 08:22:02,615 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 08:36:53,437 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 08:37:02,597 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 08:51:53,441 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 08:52:02,596 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 09:06:53,444 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 09:07:02,607 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 09:21:53,445 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 09:22:02,643 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 09:36:53,448 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 09:37:02,646 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 09:51:53,452 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 09:52:02,702 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 10:06:53,455 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 10:07:02,615 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 10:21:53,457 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 10:22:02,663 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 10:36:53,460 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 10:37:02,645 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 10:51:53,462 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 10:52:02,644 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 11:06:53,464 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 11:07:02,651 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 11:21:53,467 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 11:22:02,671 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 11:36:53,470 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 11:37:02,654 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 11:51:53,474 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 11:52:02,662 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 12:06:53,490 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 12:07:02,712 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 12:21:53,492 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 12:22:02,665 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 12:36:53,494 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 12:37:02,694 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 12:51:53,497 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 12:52:02,674 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 13:06:53,500 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 13:07:02,706 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 13:21:53,502 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 13:22:02,696 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 13:36:53,506 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 13:37:02,748 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 13:48:52,850 - octoprint.server.util.sockjs - INFO - New connection from client: ::ffff:192.168.10.173
2019-05-13 13:48:53,013 - tornado.access - WARNING - 403 GET /api/files?recursive=true (::ffff:192.168.10.173) 20.58ms
2019-05-13 13:48:53,044 - tornado.access - WARNING - 403 GET /api/printerprofiles (::ffff:192.168.10.173) 22.12ms
2019-05-13 13:48:53,073 - tornado.access - WARNING - 403 GET /api/timelapse?unrendered=true (::ffff:192.168.10.173) 20.57ms
2019-05-13 13:48:53,105 - tornado.access - WARNING - 403 GET /api/plugin/pi_support (::ffff:192.168.10.173) 23.11ms
2019-05-13 13:48:53,141 - tornado.access - WARNING - 403 GET /api/connection (::ffff:192.168.10.173) 20.44ms
2019-05-13 13:48:53,170 - tornado.access - WARNING - 403 GET /api/printer/command/custom (::ffff:192.168.10.173) 20.47ms
2019-05-13 13:48:53,209 - tornado.access - WARNING - 403 GET /api/slicing (::ffff:192.168.10.173) 31.63ms
2019-05-13 13:48:53,250 - tornado.access - WARNING - 403 GET /api/settings (::ffff:192.168.10.173) 28.70ms
2019-05-13 13:48:53,295 - tornado.access - WARNING - 403 POST /api/plugin/psucontrol (::ffff:192.168.10.173) 181.97ms
2019-05-13 13:49:07,428 - octoprint.server.util.sockjs - INFO - Client connection closed: ::ffff:192.168.10.173
2019-05-13 13:49:07,770 - tornado.access - WARNING - 404 GET /favicon.ico (::ffff:192.168.10.173) 17.54ms
2019-05-13 13:49:07,803 - octoprint.server.util.sockjs - INFO - New connection from client: ::ffff:192.168.10.173
2019-05-13 13:49:09,636 - octoprint.server.api - INFO - Actively logging in user Anycubic from ::ffff:192.168.10.173
2019-05-13 13:49:09,682 - octoprint.server.util.flask - INFO - Passively logging in user Anycubic from ::ffff:192.168.10.173
2019-05-13 13:49:09,948 - octoprint.server.util.sockjs - INFO - Client connection closed: ::ffff:192.168.10.173
2019-05-13 13:49:10,172 - octoprint.server.util.sockjs - INFO - New connection from client: ::ffff:192.168.10.173
2019-05-13 13:49:10,300 - octoprint.server.util.flask - INFO - Passively logging in user Anycubic from ::ffff:192.168.10.173
2019-05-13 13:49:13,139 - octoprint.plugins.softwareupdate - INFO - Saved version cache to disk
2019-05-13 13:49:13,206 - octoprint.server.util.sockjs - INFO - User Anycubic logged in on the socket from client ::ffff:192.168.10.173
2019-05-13 13:49:14,111 - octoprint.plugins.psucontrol - INFO - Switching PSU On
2019-05-13 13:49:18,816 - octoprint.util.comm - INFO - Changing monitoring state from "Offline" to "Detecting serial port"
2019-05-13 13:49:19,052 - octoprint.util.comm - INFO - Changing monitoring state from "Detecting serial port" to "Opening serial port"
2019-05-13 13:49:19,058 - octoprint.util.comm - INFO - Changing monitoring state from "Opening serial port" to "Connecting"
2019-05-13 13:49:19,069 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-05-13 13:49:19,960 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-05-13 13:49:20,370 - octoprint.util.comm - INFO - Changing monitoring state from "Connecting" to "Operational"
2019-05-13 13:49:20,384 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-05-13 13:49:50,433 - octoprint.util.comm - INFO - Communication timeout while idle, trying to trigger response from printer.
2019-05-13 13:49:50,459 - octoprint.util.comm - INFO - Printer reports firmware name "Marlin 1.1.9(Github, davidramiro)"
2019-05-13 13:49:50,476 - octoprint.util.comm - INFO - Firmware states that it supports temperature autoreporting
2019-05-13 13:49:50,501 - octoprint.util.comm - INFO - Firmware states that it supports emergency GCODEs M108 and M410 to be sent without waiting for an acknowledgement first
2019-05-13 13:49:50,845 - octoprint.plugins.tracking - INFO - Sent tracking event printer_connected, payload: {u'printer_baudrate': 250000, u'printer_port': u'AUTO', 'firmware_name': 'Marlin 1.1.9(Github, davidramiro)'}
2019-05-13 13:50:22,515 - octoprint.filemanager.analysis - INFO - Starting analysis of local:Drawer_ThinHandle.gcode
2019-05-13 13:50:22,519 - octoprint.filemanager.analysis - INFO - Invoking analysis command: /home/pi/oprint/bin/python2 -m octoprint analysis gcode --speed-x=6000 --speed-y=6000 --max-t=10 --throttle=0.0 --throttle-lines=100 /home/pi/.octoprint/uploads/Drawer_ThinHandle.gcode
2019-05-13 13:50:22,597 - octoprint.util.comm - INFO - Changing monitoring state from "Operational" to "Printing"
2019-05-13 13:50:22,642 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2019-05-13 13:50:23,061 - octoprint.plugins.tracking - INFO - Sent tracking event print_started, payload: {'origin': 'local', 'file': 'ca333d5a545f1d27db9111213c3762e0553309d5'}
2019-05-13 13:51:53,509 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 13:52:02,717 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 13:54:27,668 - octoprint.util.comm - INFO - Printer seems to support the busy protocol, will adjust timeouts and set busy interval accordingly
2019-05-13 13:54:32,482 - octoprint.util.comm - INFO - Telling the printer to set the busy interval to our "communicationBusy" timeout - 1s = 2s
2019-05-13 14:06:53,512 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 14:07:02,734 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 14:21:53,514 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 14:22:02,777 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 14:36:53,516 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 14:37:02,740 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 14:51:53,521 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 14:52:02,765 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 15:06:53,524 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 15:07:02,774 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 15:21:53,527 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 15:22:02,762 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 15:36:53,542 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 15:37:02,829 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 15:51:53,545 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 15:52:02,772 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 16:06:53,547 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 16:07:02,748 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 16:21:53,552 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 16:22:02,737 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 16:36:53,555 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 16:37:02,746 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 16:51:53,557 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 16:52:02,792 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 17:06:53,560 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 17:07:02,773 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 17:21:53,563 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 17:22:02,745 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 17:36:53,565 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 17:37:02,758 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 17:51:53,570 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 17:52:02,830 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 18:06:53,572 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 18:07:02,802 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 18:21:53,575 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 18:22:02,851 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 18:36:53,579 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 18:37:02,857 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}
2019-05-13 18:51:53,582 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2019-05-13 18:52:02,783 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {}