Website hosting issue. I need a file wp_fvm_cache safely cleaned to reduce space so my website can go live again

Website hosting issue. I need a file wp_fvm_cache [fast velocity minify] safely cleaned/cleared or reduced in size to reduce space so my website can go live again. This needs to be done safely. I dont know how to do this myself. I think the DATA of 52 gb needs to be cleared safely.

Can you give me some instructions on what to click to fix this problem please.

I have the phpadmin details for login.