If it is a "random" error that happens only sometimes, and you have SAS 9.4 TS1M1 (SAS VA 7.1 I would say), then I think that your ActiveMQ server gets full. Please follow the steps on this SAS Note: http://support.sas.com/kb/53/801.html
Registration is open! SAS is returning to Vegas for an AI and analytics experience like no other! Whether you're an executive, manager, end user or SAS partner, SAS Innovate is designed for everyone on your team. Register for just $495 by 12/31/2023.
If you are interested in speaking, there is still time to submit a session idea. More details are posted on the website.