PowerBuilder 12.5 suddenly stopped working

Dear Members,

I am currently using PowerBuilder 12.5.0. Suddenly it stopped working and says "Sybase PowerBuilder 12.5 has stopped working...."

The event viewer says the following..

Faulting application name: PB125.EXE, version: 12.5.0.2511, time stamp: 0x4e114b2a

Faulting module name: PBSYS125.dll, version: 12.5.0.2511, time stamp: 0x4e114b19

Exception code: 0xc0000005

Fault offset: 0x00022667

Faulting process id: 0x460

Faulting application start time: 0x01d02ffb19585477

Faulting application path: C:\Program Files\Sybase\PowerBuilder 12.5\PB125.EXE

Faulting module path: C:\Program Files\Sybase\Shared\PowerBuilder\PBSYS125.dll

Report Id: 580aad7c-9bee-11e4-aa55-6c626d766fcd

I am unable to uninstallation / repair as it raise error.

Kindly help me to solve this issue

Thanks & Regards,

Sankar Ganesh S