Thermal Runaway with Ender 3, plugin or hardware?

I started printing a glow in the dark deer for the wife. It stopped 2 to 3 hours in because of a Thermal Runaway (twice) but I have printed 3 days stuff before with no issues. Can anyone tell me from the logs below if this is a hardware or plugin issue?

My setup:
OctoPrint 1.4.2
PI 4 running GUI and chormiun on same PI
Ender 3 Pro
Direct Drive

2020-11-27 02:23:46,918 - octoprint.printer.standard.job - INFO - Print job started - origin: local, path: CE3PRO_Young-Fawn_big.gcode, owner: W8DSB, user: W8DSB
2020-11-27 02:23:46,935 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2020-11-27 02:23:46,946 - octoprint.util.comm - INFO - Changing monitoring state from "Starting" to "Printing"
2020-11-27 02:23:48,714 - octoprint.server.util.sockjs - INFO - Client connection closed: ::ffff:192.168.1.98
2020-11-27 02:23:48,998 - octoprint.util.comm - INFO - Printer seems to support the busy protocol, will adjust timeouts and set busy interval accordingly
2020-11-27 02:26:39,005 - octoprint.util.comm - INFO - Telling the printer to set the busy interval to our "communicationBusy" timeout - 1s = 2s
2020-11-27 02:30:19,748 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 02:45:19,748 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 03:00:19,751 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 03:15:19,753 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 03:30:19,755 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 03:45:19,756 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 04:00:19,757 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 04:15:19,757 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 04:30:19,758 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 04:45:19,759 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 05:00:19,760 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-27 05:14:27,606 - octoprint.util.comm - WARNING - Received an error from the printer's firmware: Thermal Runaway, system stopped! Heater_ID: 0 - Printer halted. kill() called!
| Last lines in terminal:
| Recv: ok
| Send: N131673 G1 X100.513 Y167.883 E923.44588*91
| Recv: ok
| Send: N131674 G1 X100.061 Y167.833 E923.461*81
| Recv: ok
| Send: N131675 G1 X99.558 Y167.784 E923.47781*99
| Recv: ok
| Send: N131676 G1 X98.485 Y167.702 E923.51361*99
| Recv: ok
| Send: N131677 G1 X97.456 Y167.647 E923.54788*101
| Recv: ok
| Send: N131678 G1 X97.335 Y167.639 E923.55191*110
| Recv: ok
| Send: N131679 G1 X96.205 Y167.49 E923.58982*90
| Recv: ok
| Send: N131680 G1 X96.114 Y167.472 E923.59291*107
| Recv: ok
| Send: N131681 G1 X95.438 Y167.299 E923.61612*101
| Recv: Error:Thermal Runaway, system stopped! Heater_ID: 0
| Recv: Error:Printer halted. kill() called!
2020-11-27 05:14:27,607 - octoprint.util.comm - INFO - Changing monitoring state from "Printing" to "Error: Thermal Runaway, system stopped! Heater_ID: 0 - Printer halted. kill() called!"

Check the connections to the thermistor, this is a hardware issue in the Ender 3, caused if the temperature changes too far off the usual course.

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OK, I took the hotend apart and it does appear to have been the thermistor as it popped out of the hole. I put a little heat compound on it and and put it back in. I restarted the print to see if I get any errors.

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