Error message

I just got an error message I never seen before.
System still is working fine.
Happened during normal automated play out.

18-6-2018 15:17:27 Error Exception in passing BASS_ENDOFFADE 0000000000000000 to TBassMixCueableSource: Access violation at address 6FEA6897 in module ‘bass.dll’. Read of address FFFFFDDE

Any Idea what this could be?

Thanks!
Ferry

Which mAirList build is this?

Also, which bass.dll version (right-click in Windows Explorer -> Properties -> Details)?

Build 3872
Bass.dll ver: 2.4.13.8