Hello, I've contacted my hosting provider, they did a check and they said they issue is not server based. They also disabled modesec but the issue is they, all server requirements was checked. I even tried to reinstall the script but it didn't work. We restored a backup of the last day I used the admin dashboard but it's still not working, I believe it's something you can solve from your end as this is really urgent and affecting my business.
Regards.