wp-admin

I have 25 sites all wordpress latest version. These sites were moved from HostGator around 10 weeks ago and I have had no problems until a week ago.

One site only manilamart.com.au loads up ok but can’t log in to make any changes. When I log in using manilamart.com.au/wp-admin I get a blank page.

My host is suggesting a debug, in other words, they cant help me.

The host is using cpanel and I can get into that but I dont know what I am doing without guidance

I am not the sharpest tool in the box but I have been using wordpress for almost 7 years. I need some help please.