If you have the syslog file, you can look in it to see if there is more data.
But most likely you have encountered an NX bug (or trying to do something that shouldn't be done).
If it is repeatable, you could file an IR with GTAC (or your VAR) to investigate the issue.
If you are running an API program or journal when it happens, the code probably needs to be fixed somehow.
You could search the Solutions database (https://solutions.industrysoftware.automation.siemens.com/) to see if anything resembles your issue.
Sorry, but it is a very generic error that doesn't help much in debugging the issue.
Production: NX10.0.3.5 MP16/TC11.2I'd rather be e-steamed than e-diseaseled