Your printer stops responding to OctoPrint altogether here:
Send: N2568 G1 X132.188 Y85 E153.68361*116
Recv: ok
Send: N2569 G1 X132.403 Y86.076 E153.72011*96
Recv: ok
Send: N2570 G1 X133.012 Y86.988 E153.75658*105
Communication timeout while printing, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Send: N2571 M105*22
Communication timeout while printing, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Send: N2572 M105*21
Communication timeout while printing, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Send: N2573 M105*20
Communication timeout while printing, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Send: N2574 M105*19
Communication timeout while printing, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Send: N2575 M105*18
No response from printer after 6 consecutive communication timeouts, considering it dead. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Changing monitoring state from "Printing" to "Offline (Error: Too many consecutive timeouts, printer still connected and alive?)"
Connection closed, closing down monitor
OctoPrint needs a reliable serial communication with the printer to work. Could be a firmware issue maybe, but it's hard to say since your serial.log
doesn't contain an actual connection to the printer, only a failed connection attempt.