Sometimes you can get this message from the server component:
B1UP Server Component skipped a job: <name of job> - <dbName>
Skip a job messages are normally an indication that is server component task takes longer than the interval it is set to run. This can happen in cases where you, for example, have an interval of 5 minutes for a job, but it takes 8 minutes to run.
If it happens once you can safely ignore it as the machine in question might just have been too busy at the time (big backup, run of big batch-add/update in the B1 Client). If it happens more frequently then try raising the interval the system is running in the schedule in the B1UP Schedules (Example only run every 10 minutes instead of every 5 minutes)
Also check out this SAP Note that can result in very long DI-API connection times on servers (and in that way long times running a job):https://launchpad.support.sap.com/#/notes/2113913 (this issue is expected to be fixed in SAP 9.2 PL09)
If you get the error constantly every x number of minutes then the component might be endlessly stuck in a DI-API connection (very rare but seen before). If so log into the server, bring up the task manager and kill any processes called "B1PrintComponent.exe".