[Plugin: Enable Media Replace] Crash Error!

I am getting the following errors on WordPress 3.1.1

Warning: unlink() [function.unlink]: No such file or directory in /home/content/85/8856585/html/wp-content/plugins/enable-media-replace/upload.php on line 65

Warning: move_uploaded_file() [function.move-uploaded-file]: Filename cannot be empty in /home/content/85/8856585/html/wp-content/plugins/enable-media-replace/upload.php on line 77

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move ‘/tmp/phpoH7J4L’ to ” in /home/content/85/8856585/html/wp-content/plugins/enable-media-replace/upload.php on line 77

Warning: chmod() [function.chmod]: No such file or directory in /home/content/85/8856585/html/wp-content/plugins/enable-media-replace/upload.php on line 80

Warning: Cannot modify header information – headers already sent by (output started at /home/content/85/8856585/html/wp-content/plugins/enable-media-replace/upload.php:65) in /home/content/85/8856585/html/wp-includes/pluggable.php on line 866

Seems like all my previous images have been “removed” as my old images appear broken.

Any Ideas?

http://ww.wp.xz.cn/extend/plugins/enable-media-replace/