Opencore Hackintosh stuck on Apple logo after power outage. It was working fine for 3 months. How do I repair it or recover my data? URGENT.

My Dell optiplex i7 7700 opencore Hackintosh was working pretty well for a longtime (3 months). There was an unexpected power outage and after restart it is getting stuck at the Apple logo, even in recovery mode. How do I repair it, if not can I recover my data, some of it is new data which I hadn't backed up on cloud? It is pretty urgent, Thanks for the help.