Can’t get into Admin Page

Hi,

When I try to get to the login for my admin page at http://www.comicsninja, I get the following:

Warning: sem_get() [function.sem-get]: failed for key 0x152b: Permission denied in /home1/comicsni/public_html/wp-content/plugins/wp-cache/wp-cache-phase2.php on line 98

Warning: Cannot modify header information – headers already sent by (output started at /home1/comicsni/public_html/wp-content/plugins/wp-cache/wp-cache-phase2.php:98) in /home1/comicsni/public_html/wp-includes/pluggable.php on line 868

My site’s format it messed up as well. It was all working fine last night and I haven’t made any changes.