TextBase builder jobs in Flow sometimes fail with the error "Error when trying to submit the job to MultiTrans: TextBase is Offline." and the batch of files also has the job ID of MultiTrans Job Id: -1.
The following article explains why this error occurs and how to manually reschedule the files that failed to be uploaded to the TextBase:
https://gateway.sdl.com/apex/communityknowledge?articleName=000018170