Fatal error: Class 'CI_Output' not found in /home/......../Common.php on line 148

[eluser]Unknown[/eluser]
After I send my project to server i heave this message. HELP please .

[eluser]InsiteFX[/eluser]
More information would be helpful!

What Error!
Where is he code?
etc.

InsiteFX

[eluser]sprise[/eluser]
Did you try to use a method without loading its library/helper?