Don't forget to check your TZ

[HerveBauffe]

I feel a little silly writing about this but I constantly had an code=exited, status=1/FAILURE and spent way too long debugging but in the end the timezone of my machine wasn't set properly, which made the offset feature stop the service after about 4-5hours of running.
Here is the log I had
[2025-12-28 21:58:08] SCRIPT: /home/orangepi/export2garmin-master/import_data.sh: line 168: : + +00 * 3600 + 0 : syntax error: operand expected (error token is ": + +00 * 3600 + 0 ")

With the correct timezone everything works great again, so thought I'd share !