A client was upgraded to Sage 2019 and time and again, sage stops responding and asks to debug. then it closes abnormally. What could be the issue. the below is what event log states

Faulting application name: accpac.exe, version: 6.6.0.20, time stamp: 0x5cb6cf22
Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000
Exception code: 0xc0000005
Fault offset: 0x00000000
Faulting process id: 0x201c
Faulting application start time: 0x01d5b458671b4372
Faulting application path: S:\Sage\Sage Accpac\Runtime\accpac.exe
Faulting module path: unknown
Report Id: fb5868c5-daf2-4391-b847-5cd8d0a60f62
Faulting package full name:
Faulting package-relative application ID: