I'm trying to save changes of my WordPress website menu (moving pages within the menu, deleting pages from the menu), but I cannot save the changes anymore. Everytime I try to save the modified menu I get the error message "Fatal error: Maximum execution time of 30 seconds exceeded in /home/uoapunni/public_html/wp-includes/plugin.php on line 146" and I don't know why or what to do.
Can someone please help me? I really have to change the website menu!!!
Thanks in advance.