Error: “An error occured” in Joomla admin section
After installing the latest version of Joomla you may sometimes notice the below error in the “admin” section.
An error occured
This happens because of the incorrect/low MySQL “sort_buffer_size”, to fix this edit the “my.cnf” file
Add the below line to the end of the file
sort_buffer_size = 1M
Restart the MySQL server by executing
service mysqld restart
service mysql restart
Now refresh the Joomla admin section and the error will not be displayed anymore.