ActorSystem: Uncaught fatal error from thread

We are getting this error when trying to start our application and it is something we have not seen before. We are currently trying to roll back to a previous version to see if that fixes the issue. has anyone seen this before? This is an onsite deploy on a windows server.  Thanks in advance.
1 answers

Our system is currently up and running. We had to deploy an old version of the old code then redeploy a version of the new code. We are not sure why we were seeing that error and any insight is appreciated. We also submitted a ticket to mendix support