Either in addition or related to the above error your have the following as well:
MCU 'toolboard' shutdown: Timer too close
See here:
A side note from @Sineos to the original topic:
General note: Log lines like stepcompress o=4 i=0 c=17 a=0: Invalid sequence often are a consequence of errors / events that happened before. This means they are rather a symptom but not the root cause.
What is connected to your Pi Zero 2?
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