Hi percy mangozho 
Check your Syracuse logs, you might have more information. This looks like a session crash.
Check also the runtime/tmp directory on your runtime server.

2 reasons for this

1) you are running code compiled pre Sage V12 Patch 19 (or v9/V11)

2) Upgrade Sage/Syracuse (patch 32) to fix "Unexpected behavior with the Break instruction^X3-214041" 

We resolved the issue.

Syracuse didnt like a new allocation rule that we had created.

We created an allocation rule called ZFEFO2 and that caused the issues.