Jobber runner exits a few times per day

[maxim-geoguard]

Hello,
I've had an issue with one job in jobber, it seems to start downloading some files, but then were interrupted and left the file corrupted. I've checked syslog and find out lots of errors like this:
jobbermaster[3412238]: Runner for root exited with error: exit status 141
jobbermaster[3412238]: ExecAndWait: /bin/sh: exit status 1
jobbermaster[3412238]: message repeated 27 times: [ ExecAndWait: /bin/sh: exit status 1]
jobbermaster[3412238]: ExecAndWait: /bi
jobbermaster[3412238]: Restarting runner for root

Sometimes it happens at the same time as jobs in jobber config are scheduled, sometimes just at the start of any hour(XX:00:00).

Any advice on why it is happening?