rsync job fails but after recreating it works

OMV\ExecException: Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LC_ALL=C.UTF-8; export LANGUAGE=; export SHELL=/bin/sh; sudo --shell --non-interactive -- /var/lib/openmediavault/cron.d/rsync-5b34745b-e3f2-4d04-8357-c8b0b11224c8 2>&1' with exit code '1':  in /usr/share/openmediavault/engined/rpc/rsync.inc:276
Stack trace:
#0 /usr/share/php/openmediavault/rpc/serviceabstract.inc(628): Engined\Rpc\Rsync->Engined\Rpc\{closure}()
#1 /usr/share/openmediavault/engined/rpc/rsync.inc(261): OMV\Rpc\ServiceAbstract->execBgProc()
#2 [internal function]: Engined\Rpc\Rsync->execute()
#3 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array()
#4 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod()
#5 /usr/sbin/omv-engined(544): OMV\Rpc\Rpc::call()
#6 {main}