Hi,
I would take a look at this thread:
https://www.ads-software.com/support/topic/i-can-log-in-but-dashboard-blank?replies=14
The one post from @christine Rondeau seemed to work for this other user.
Her words:
“I would look at the wp-config.php file and compare it to the wp-config-sample. php.
I would take your db, username, password and host info from the wp-config.php and paste it in the wp-config-sample.php and then generate a new wp-config.php using that.
Hopefully the new wp-config.php with your old db connection info will let you log back in.
Make sure you keep a copy of your old wp-config.php though…”
Please be cautioned: This isn’t something that I’ve had to do. But I figured I would share what I did find on this topic for you.
Hope all is well.