Trrance send me your functions.php url (for the problem theme) i will fix it for you.
Trrance if you remove correct lines you can fix the problem.
i connected your site. and there were no problems.
but know i cant reach your site.
Trrance :
i removed the code in functions.php. So it worked without any problems
Ok i find the solution.
Special thanks to : twilvaro
Find the functions.php file in your theme folder
(ex : wp-content/themes/YOURTHEMENAME/)
YOU MUST SEE A CODE LIKE THAT:
[Code moderated. Please do not post hack code blocks in the forums. Please use the pastebin]
now delete it.
save and re-upload.
That is all worked for me.