please help no one can help me

[puregraf]

i have this problem that i am getting this error in my error log

17-Dec-2007 01:10:05] PHP Warning: Unknown(): Unable to load dynamic library '/usr/local/lib/php/extensions/no-debug-non-zts-20020429//home/puregraf/public_html/videos/phpshield/phpshield.4.4.lin' - /usr/local/lib/php/extensions/no-debug-non-zts-20020429//home/puregraf/public_html/videos/phpshield/phpshield.4.4.lin: cannot open shared object file: No such file or directory in Unknown on line 0

basically its not converting my video files , how do i fix this problem, can i just reinstall this extension?

i tried getting help in 3 different forums no one has helped me so far, i hope someone here can help
thanks