Perpetual problems with Snapmaker 2.0

Hello.
I am slowly getting fed up with this printer.
Can someone help me find out why it stops printing at any moment?
It happens every time in a different printing process.
I use Snapmaker Luban, I send the file via Wi-Fi.
I use Snapmaker Dual-Extruder.
I have replaced almost everything in it and I still have problems.
Please help.
If necessary, I will send the entire log.
Regards

I am pasting the last few lines from the log:
1740591812314,2025.02.26

 17:43:32.314,INFO,SC-FW,fan_index: 0, speed: 255
1740591929552,2025.02.26 17:45:29.552,INFO,SC-FW,new E target temp: 230
1740591929556,2025.02.26 17:45:29.556,INFO,SC-FW,Set T1=230
1740591948321,2025.02.26 17:45:48.321,ERROR,SC-FW,active extruder mismatch target: 0!
1740591948335,2025.02.26 17:45:48.335,INFO,SC-FW,clear extruder mismatch error!
1740592057590,2025.02.26 17:47:37.590,INFO,SC-FW,leveling OFF
1740592057591,2025.02.26 17:47:37.591,INFO,SC-FW,origin pos: 228.847, 191.113, 49.253
1740592057593,2025.02.26 17:47:37.593,INFO,SC-FW,raise: 1.000, endstop max: 334.000, z offset: -1.515
1740592057776,2025.02.26 17:47:37.776,INFO,SC-FW,raised pos: 228.847, 191.113, 50.253
1740592057906,2025.02.26 17:47:37.906,INFO,SC-FW,Unapply hotend[0] Z offset: -0.05
1740592057908,2025.02.26 17:47:37.908,INFO,SC-FW,offset pos: 255.484, 191.038, 48.741
1740592060058,2025.02.26 17:47:40.058,INFO,SC-FW,Apply hotend[1] Z offset: -0.05
1740592060257,2025.02.26 17:47:40.257,INFO,SC-FW,descent pos: 228.847, 191.113, 49.253
1740592060263,2025.02.26 17:47:40.263,INFO,SC-FW,leveling ON
1740592060265,2025.02.26 17:47:40.265,INFO,SC-FW,new E target temp: 96
1740592060266,2025.02.26 17:47:40.266,INFO,SC-FW,Set T0=96
1740592060268,2025.02.26 17:47:40.268,INFO,SC-FW,new E target temp: 230
1740592060271,2025.02.26 17:47:40.271,INFO,SC-FW,Set T1=230
1740592060273,2025.02.26 17:47:40.273,INFO,SC-FW,fan_index: 1, speed: 127
1740592060275,2025.02.26 17:47:40.275,INFO,SC-FW,new E target temp: 235
1740592060277,2025.02.26 17:47:40.277,INFO,SC-FW,Set T1=235
1740592131644,2025.02.26 17:48:51.644,INFO,SC-FW,new E target temp: 220
1740592131645,2025.02.26 17:48:51.645,INFO,SC-FW,Set T0=220
1740592198329,2025.02.26 17:49:58.329,INFO,SC-FW,new E target temp: 230
1740592198331,2025.02.26 17:49:58.331,INFO,SC-FW,Set T1=230
1740592206750,2025.02.26 17:50:06.750,INFO,SC-FW,leveling OFF
1740592206753,2025.02.26 17:50:06.753,INFO,SC-FW,origin pos: 167.792, 251.656, 49.303
1740592206754,2025.02.26 17:50:06.754,INFO,SC-FW,raise: 1.000, endstop max: 332.485, z offset: -1.515
1740592206933,2025.02.26 17:50:06.933,INFO,SC-FW,raised pos: 167.792, 251.656, 50.303
1740592207060,2025.02.26 17:50:07.060,INFO,SC-FW,Unapply hotend[1] Z offset: -0.05
1740592208480,2025.02.26 17:50:08.480,INFO,SC-FW,offset pos: 141.155, 251.731, 51.815
1740592209326,2025.02.26 17:50:09.326,INFO,SC-FW,Apply hotend[0] Z offset: -0.05
1740592209528,2025.02.26 17:50:09.528,INFO,SC-FW,descent pos: 167.792, 251.656, 49.303
1740592209535,2025.02.26 17:50:09.535,INFO,SC-FW,leveling ON
1740592209541,2025.02.26 17:50:09.541,INFO,SC-FW,new E target temp: 35
1740592209545,2025.02.26 17:50:09.545,INFO,SC-FW,Set T1=35
1740592209558,2025.02.26 17:50:09.558,INFO,SC-FW,new E target temp: 220
1740592209559,2025.02.26 17:50:09.559,INFO,SC-FW,Set T0=220
1740592209565,2025.02.26 17:50:09.565,INFO,SC-FW,fan_index: 0, speed: 255
1740592216188,2025.02.26 17:50:16.188,ERROR,SC-FW,active extruder mismatch target: 0!
1740592216287,2025.02.26 17:50:16.287,INFO,SC-FW,clear extruder mismatch error!
1740592221309,2025.02.26 17:50:21.309,ERROR,SC-FW,active extruder mismatch target: 0!
1740592221944,2025.02.26 17:50:21.944,INFO,SC-FW,clear extruder mismatch error!
1740592225439,2025.02.26 17:50:25.439,ERROR,SC-FW,active extruder mismatch target: 0!
1740592225445,2025.02.26 17:50:25.445,INFO,SC-FW,clear extruder mismatch error!
1740592225459,2025.02.26 17:50:25.459,ERROR,SC-FW,active extruder mismatch target: 0!
1740592225527,2025.02.26 17:50:25.527,INFO,SC-FW,clear extruder mismatch error!
1740592225549,2025.02.26 17:50:25.549,ERROR,SC-FW,active extruder mismatch target: 0!
1740592225589,2025.02.26 17:50:25.589,INFO,SC-FW,clear extruder mismatch error!
1740592329360,2025.02.26 17:52:09.360,INFO,SC-FW,new E target temp: 230
1740592329366,2025.02.26 17:52:09.366,INFO,SC-FW,Set T1=230
1740592342841,2025.02.26 17:52:22.841,ERROR,SC-FW,Thermistor of hotend[0] maybe come off! temp: 204.90 / 220
1740592342842,2025.02.26 17:52:22.842,INFO,SC-FW,new E target temp: 0
1740592342844,2025.02.26 17:52:22.844,INFO,SC-FW,Set T0=0
1740592342846,2025.02.26 17:52:22.846,INFO,SC-FW,new E target temp: 0
1740592342847,2025.02.26 17:52:22.847,INFO,SC-FW,Set T1=0
1740592342858,2025.02.26 17:52:22.858,INFO,SC-FW,new B target temp: 0
1740592342858,2025.02.26 17:52:22.858,INFO,SC-FW,new E target temp: 0
1740592342859,2025.02.26 17:52:22.859,INFO,SC-FW,Set T0=0
1740592342861,2025.02.26 17:52:22.861,INFO,SC-FW,new E target temp: 0
1740592342862,2025.02.26 17:52:22.862,INFO,SC-FW,Set T1=0
1740592342863,2025.02.26 17:52:22.863,INFO,SC-FW,fan_index: 0, speed: 0
1740592342875,2025.02.26 17:52:22.875,INFO,SC-FW,QS recorded pos X: 0.000, Y: 0.000, Z: 0.000, E: 0.000
1740592342876,2025.02.26 17:52:22.876,INFO,SC-FW,QS at logical pos: X: 153.631, Y: 121.431, Z: 5.399, E: 86.019
1740592342877,2025.02.26 17:52:22.877,INFO,SC-FW,leveling OFF
1740592342878,2025.02.26 17:52:22.878,ERROR,SC-FW,not handle file Gcode in this status: 9
1740592362120,2025.02.26 17:52:42.120,INFO,SC-FW,leveling ON
1740592362125,2025.02.26 17:52:42.125,INFO,SC-FW,Finish stop
1740592868626,2025.02.26 18:01:08.626,INFO,SC-FW,disable nozzle fan
1740592868627,2025.02.26 18:01:08.627,INFO,SC-FW,fan_index: 2, speed: 0
1740593905389,2025.02.26 18:18:25.389,INFO,SC-FW,SC req STOP
1740593905395,2025.02.26 18:18:25.395,ERROR,SC-FW,cannot stop in current status[1]
1740593905396,2025.02.26 18:18:25.396,INFO,SC-FW,SC req -> Failed

Your left hotend has a bad thermistor, maybe it’s loose or came out or the connection is bad.

Edited your text to preformated text.

Anyway, it would help if you share the whole Fw and sc log. In this case maybe it was only your thermistor but who knows…

The whole log.
Regards and thank you very much for your help.

Log Snapmaker.docx (267.9 KB)