Menu Creation Error in Joomla
As I was trying to create a new menu for a friends website, I always got the following error.
Save failed with the following error: MenusTableMenu: :_getNode Failed -
I've searched around and found out that this error is produced because one row in the menu table of SQL is missing and so Joomla cannot populate any additional menus. I have not found out why this happens, but I've found a solution at the Joomla forums.
The only thing you have to do, is log in to phpMyAdmin and execute this script. You only have to change the database name with the one your site is using and the prefix of the menu table. They are both in capitals to drag your attention. Afterwords everything will be working fine again.
Logging in to phpMyAdmin
To log in in your phpMyAdmin, you need your hosting plan credentials. You have to log in to the administration panel of your hosting (NOT the myjoomlasite.com/administrator) and there you will find it, maybe under some databases tab.
Executing the script
Somewhere it should say "Execute SQL command" or maybe you'll find an SQL tab. Copy and pass the code there and then hit Go.