WordPress site not showing up

Hello, i need help. i have tried everything but it’s not working. so the thing that happened was the site was working fine but it suddenly starting giving error that ssl certificate was not correct. contacted dreamhost and they said I’m using cloudflares DNS and i should do something about it. I then pointed the DNS to dreamhost as they said only then they can do something about the site. they did nothing even after that.
anyways, the thing is in the hosting panel it shows that i don’t have WordPress installed but i do have the previous WordPress data when i open files.
Should i install WordPress again? will it remove the previous data or it can be stored somehow? i don’t have any backup of site sadly.

 

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