WP-Minify generating alot of Errors on Server – Help!

I’m also having problems so i’ve just had to disable this plugin for the time being – again aiting for a new version

this time though the problems relate to php errors in apache log

Cannot modify header information – headers already sent by

PHP Warning: flock() expects parameter 1 to be resource, boolean given in /home/pulse/public_html/wp-content/plugins/wp-minify/min/lib/Minify/Cache/File.php

stream_get_contents() expects parameter 1 to be resource, boolean given in /home/pulse/public_html/wp-content/plugins/wp-minify/min/lib/Minify/Cache/File.php

fopen(/home/pulse/public_html/wp-content/plugins/wp-minify/cache//minify_8652d9abf14f5197d36f5da2aa30ed8f) [function.fopen]: failed to open stream: No such file or directory in /home/pulse/public_html/wp-content/plugins/wp-minify/min/lib/Minify/Cache/File.php on line 102

I hope the developer can work out whats going on as i’m having to disable this plugin now ??