Whm and Wordpress

Hello First of all sorry for my bad English but isnt my first language. I own a dedicated server that uses Whm. I installed approximately 30 wordpress in accounts. Suddenly i cant upgrade wordpress via Whm for users. Error message is: Site Software cPanel::Blogs::WordPress This is a cPanel packaged module. (v1.04) Website [url=http://www.wordpress.org/]WordPress Requires MySQL 5 or newer. Could not prepare working directory: No such file or directory I used also wpremote.com application but again i am not able to upgrade wordpress. How can i disable wordpress update via Whm and to update them via wordpress administration? Thanks in advance