Class 'WPMinifyCommon' not found in /xxx/wp-content/plugins/wp-minify on line 48

Hi,

? just use wp-minify 1.1.6 version- last version- and everything is okey before today? There is no changing anything at minify options but today, at the first my site didn’t open then i tried to enter the wp-admin panel and “Class ‘WPMinifyCommon’ not found in /xxx/wp-content/plugins/wp-minify on line 48” then i deleted minify folder with FTP. Then try to enter my panel, i entered in, but my site is so slow, sometimes it didn’t open. when i want to activate this application, same error sentences come again on my screen.

What will I do for solve this problem?

Thanks now.