It could be related with figerprints. Determine if that error
always shows at certain type of fingerprint and simply eliminat
such fingerprints. Im not sure about that, but you can try.
On the other hand, there were some issues already addressed
on similar behavior by other users. So maybe developer will solve
it in next BAS version. So you can try installing that new version and
see if that will solve your problem. New version is not public yet, but
can be downloaded here from forum for testing purposes before it
becomes public.
Maybe someone else will answer you here if he/she encountered
and solved such behavior successfully.If nothing helps you can document
this behavior and create minimalistic test script that replicates such
behavior and post it here on forum, or send it directly to premium
support if you are useing premium/paid BAS.
https://community.bablosoft.com/topic/2707/how-to-correctly-report-about-error