My software use the ADO .NET provider and crash once or twice a day.
I searched on this tracker and my problem is very similar to
I used the provided tool (FirebirdNullExceptionReproduce.zip) to reproduce the problem.
I updated this tool with the latest version of ADO .NET provider (22.214.171.124) and the problem is still here.
I join to the issue the zipped tool updated with the 126.96.36.199 version.
Can you take another look for that problem ?