This error show on font and back end..
Warning: session_start(): open(/home/thebully/php-tmp/sess_dd40c156de38296b3c4e20eedf623dae, O_RDWR) failed: No such file or directory (2) in /home/thebul12/public_html/libraries/joomla/session/handler/native.php on line 260
Warning: session_start(): Failed to read session data: files (path: /home/thebully/php-tmp) in /home/thebul12/public_html/libraries/joomla/session/handler/native.php on line 260
Error: Failed to start application: Failed to start the session