how to fix corrupt Perforce database

My source control in unreal connects successfully to the P4V client but there is no checkout option where as I can checkout from the P4V Client but not from Unreal editor.

Checked in this forum and the answer I got was that “corrupt Perforce database”

Can anybody please guide me as how to fix that ? Though I got documentation, still am unable to match it with my local installs.

My installation path-
c->programfiles>perforce

Please help