Have a look at
https://wordpress.org/support/topic/update-from-today-crashed-my-site/
There is described how to fix this issue.
I copied it here
TO FIX THIS IS EASY:
This is a typo in class-theme-my-login.php file the variable should be $query not $wp_query….
open file: theme-my-login/includes/class-theme-my-login.php
go to line 264…
edit:
// Bail if not the main query
if ( ! $wp_query->is_main_query() )
return;
change to:
// Bail if not the main query
if ( ! $query->is_main_query() )
return;
Ralf
Same issue here. Get a 500 error after the update.
EDIT: I was able to get it disabled following these steps, (in case someone runs into the same issue)
1- Disable TML Plugin.
2- Change its foldername.
3- Remove TML Plugin from within WordPress dashboard.
4- Delete its folder.
@ralfeiberger
I did as mentioned on your post, it did not resolve the issue.
I even tried disabling TML, still same issue, then deleted it, same issue! even though the file(s) do not exists.
:/
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This reply was modified 7 years, 2 months ago by nizoo.
Sorry for that! 6.4.9 was released right after to correct this issue.