It is working fine but there is some errors that I am not sure how to fix.
[admin-flatfile.smx] Error(s) detected parsing addons/sourcemod/configs/admins_simple.ini
[admin-flatfile.smx] (line 39) Invalid flag detected: x
Added this to the server.cfg
Then added the x to the admin flag like this "99:zx"
Its working as it should.