How can be fixed a checkpoint error - Could not checkpoint , '"process-execution2"; conn: WSAECONNABORTED

Hello,

While running a checkengine command on our development server, I noticed that for one Appian engine (Process-Exec02) the status is: "ERROR 2 checkpoint failures *16 hrs 1 min since checkpoint Checkpointing recommended".
I tried to perform a checkpoint for the specific engine, but the following error appeared: Could not checkpoint , '"process-execution2"; conn: WSAECONNABORTED
I tried to come back to the previous working .kdb but the result is the same, checkengine command is returning "Checkpoint recommended".
I also tried to repair the last .kdb in full, which by the way took all night (the kdb files for process execution2 are over 6 GB each), and the result is the same.
All the tests where performed with the JBOSS shut down and only after running Appian stop-suite command.

Do you have any idea what can I do to ...

OriginalPostID-238069