service stops after few seconds

[mapagm]

Hi there,

My problem is the temperature-machine service stops few seconds after start:

 ● temperature-machine.service - temperature data logger based on the DS18B20 sensor
      Loaded: loaded (/lib/systemd/system/temperature-machine.service; enabled; vendor preset: enabled)
      Active: active (running) since Tue 2023-09-19 12:41:55 CEST; 2s ago
     Process: 2603 ExecStartPre=/bin/mkdir -p /run/temperature-machine (code=exited, status=0/SUCCESS)
     Process: 2604 ExecStartPre=/bin/chown pi:pi /run/temperature-machine (code=exited, status=0/SUCCESS)
     Process: 2605 ExecStartPre=/bin/chmod 755 /run/temperature-machine (code=exited, status=0/SUCCESS)
    Main PID: 2606 (bash)
       Tasks: 4 (limit: 1595)
         CPU: 403ms
      CGroup: /system.slice/temperature-machine.service
              ├─2606 bash /usr/share/temperature-machine/bin/temperature-machine
              └─2633 bash /usr/share/temperature-machine/bin/temperature-machine

and then:

● temperature-machine.service - temperature data logger based on the DS18B20 sensor
     Loaded: loaded (/lib/systemd/system/temperature-machine.service; enabled; vendor preset: enabled)
     Active: activating (auto-restart) (Result: exit-code) since Tue 2023-09-19 12:42:12 CEST; 6s ago
    Process: 2603 ExecStartPre=/bin/mkdir -p /run/temperature-machine (code=exited, status=0/SUCCESS)
    Process: 2604 ExecStartPre=/bin/chown pi:pi /run/temperature-machine (code=exited, status=0/SUCCESS)
    Process: 2605 ExecStartPre=/bin/chmod 755 /run/temperature-machine (code=exited, status=0/SUCCESS)
    Process: 2606 ExecStart=/usr/share/temperature-machine/bin/temperature-machine (code=exited, status=1/FAILURE)
   Main PID: 2606 (code=exited, status=1/FAILURE)
        CPU: 9.264s

If I start it manually with temperature-machine command it works... What is going on? Please help.