Can’t login on WordPress

I cannot login on WordPress all of the sudden, I tried reintalling WordPress, and the template. I also tried deativating plugins. Everything works except for the fact that I can’t login.

If I use a wrong password it will notify me on that. If I use the correct one I get this page:

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The page isn’t working
is currently unable to handle this request.



Line 884:

$manager = WP_Session_Tokens::get_instance( $user_id );

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  1. There’s a lot of problems that can give http error 500, have you tried these options?

    1. Check directory permissions, make sure wordpress, wp-content, wp-admin, wp-includes are 755.

    2. Try the solutions shown HERE.

      • Add these lines in your .htaccess:

        AddType x-mapp-php5 .php
        AddHandler x-mapp-php5 .php
    3. Increase php memory limit in your php.ini file.

    4. If it didn’t work yet check your .htaccess again, make sure everything is right.

    5. Add logs and your .htaccess file your question.

  2. Are you able to try turning off Mod Security?

    I had a similar issue – sometimes I couldn’t log in, when I could I subsequently couldn’t post anything and it was related to Mod Security. Unfortunately, amending .htaccess didn’t work for me, nor did all of the other solutions about PHP memory or permissions, however within cPanel I had the option to turn of Mod Security per domain. I did that and haven’t had a problem since. It’s not ideal, but if it works for you it can be a temporary measure until you’re able to work with your host to figure out why this has suddenly started happening.