Quick Fix WordPress Fatal Error: Allowed memory size of X Bytes exhausted
Fix WordPress Fatal Error: Allowed memory size of X Bytes exhausted in one minute (With voiceover).
Login to your Cpanel:
Go to the the wp-includes folder
Look for the default-constants.php file and click "edit"
change the variable: WP_MEMORY_LIMIT from 40 to 128M
Refresh your browser, and that's it.