Help! Website down

My website is down. I deleted a file in the root directory which referenced “wordfence” because I no longer use that plugin on my Wordpress site. Now the site is crashed (HTTP ERROR 500) and I can’t login to Wordpress. I contacted IONOS who the domain is with, but they said I need to talk to Cloudflare. I am not sure what to do, please help!

Domain?

bestelectricproducts .com

Both bestelectricproducts.com and www.bestelectricproducts.com are pointing directly to IP addresses operated by IONOS

It is that IONOS server that responds with the 500 error, and as such, the error must be fixed on that IONOS server.

Cloudflare does not interfere with anything here.