Error notice

I received the following error notice at the top of my url site. It just appeared. Can anyone help me understand what this is about and how to correct?

Warning: copy( ) [function.copy]: failed to open stream: No such file or directory in /hermes/waloraweb091/b2604/moo.etechbooks/e-TechCareerCenter/wp-content/plugins/font/Font.php on line 101