The database is corrupted.

[GoldenPlaya3]

I am using a Wordpress-based news website. For the past few days, I have been updating old news. The server gave a 504 Gateway Time-out error. When it was fixed after 5-10 minutes, the database got corrupted this time. I have no backups available. The user section, video gallery, and photo gallery sections on the site are gone. When I checked the database, everything in the user and user-meta fields was deleted. The news seems to be from 2 months ago, but the latest ones I added are still there on the site. In the admin panel, none of the Wordpress options are available. As shown in the image, there is no interference happening anywhere. What can I do, 8 years of hard work is at stake...