MY site keeps breaking

RUnning WP 4.9.5
Avada 5.5
Site: https://moneymovers.com

My site started breaking (White screen of death) about two weeks ago. At first I restored the backup mysql and that seemed to work for a few hours and then it would break again. I wrestled with it for about 8 days replacing the DB. It would stay up for several hours and then break again. I discovered that the index.php and the wp-config file were disappearing. I assumed that they were being malwared and my Bitdefender was quarantining them. I reinstalled AVADA, the wordpress WP-ADMIn and WP-INCLUDES folders, but it still kept breaking. So I got an old backup folder of the site, cleaned it up with Wordfence, deleted all the old unused plugins, and took the inactive plugins out of the folder. Still breaks. Wordfence finds malware each time I restore it from the old backup. I’ve done everything I can to clean it but it still keeps breaking. Wordfence says it is clean.

If I copy the site folder and then point to it with IIS it breaks. Then if I point back to the original folder it breaks too. So I have to copy the old backup and put it back in my Main site folder and start over. I have made sure there is no bad code in the Index.php and wp-config file on my source backup folder. I’m running 10 sites in the folder, and most of the are using Avada 5.5 and WordPress 4.9.5. and none of them are breaking. Any suggestions?

The page I need help with: [log in to see the link]