Did you get a solution to this problem?
I’m trying to install WordPress and am getting the same error (“Sorry, that isn’t a valid email address. Email addresses look like [email protected].”) at the second install page.. the form is asking for a username but tells me that the email address is invalid. I’ve tried putting my email address and random email addresses in there – no difference.
Brand new install, downloaded a fresh copy of WP 4.6.1 this morning, new database as well. Nothing else in the root nor the sub directory. Any help gratefully received.
Did you ever find the solution to this problem..? On the error console I’m getting the following:
‘[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (admin-ajax.php, line 0)’
So far it’s working intermittently and appears to work best when only one word put in the search string..
