Error appeared on a BP3800MK2 with Galil 4040 and OS Win 7 32 bit when BPwin has been updated from V5.55 to V7.0.x
"Internal Runtime Error" message are generic, and do not mean anything other than BPWin and Windows have a conflict.
Reinstalling visual studio redistributable version vcredist2015_x86.exe fixed this issue. This file can be found in C:\Program Files (x86)\BP Microsystems\BPWin 7.0.4\Drivers\