WordPress fix Can’t access dashboard

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Can’t access dashboard, by sydneylover

Can’t access my website
Happy Easter everyone.
I try to access my website trough the usual wp-admin method, but now it is not possible.
When I use frohmood.com/wp-login.php – the username box comes up with password. I complete this task.
Instead of opening my dashboard, I only get a blank page.
When I do the same procedure in Chrome, I receive a Http Error 500 – message.

Who can help me out of this fix? Pleaseeeeeeee

Can’t access dashboard