I have 4 different WP sites and I cannot access the WP admin function for any of them. I instantly get the message "Your request timed out. Please retry the request".
Three of the domains were purchased and had many old links that appeared to be causing a high volume of 404 errors. I installed a plugin (but I can't access it to find the name) to save the link juice. This was supposed to redirect 404 errors to the home page.
Since then... everything was ok, then I could access the admin sites but couldn't update one of them, then couldn't access the admin for a few but could access the others. Now I can't get to the admin function for any of the four sites.
I don't know if the plugin caused the problem or not because I didn't install it on all four of my sites.
How can I access wp-admin?