[Plugin: WordPress Mobile Pack] Plugin Mobile Pak

upgrading is unsuccessful:

Fatal error: Allowed memory size of 52428800 bytes exhausted (tried to allocate 1807666 bytes) in /mounted-storage/…../…../…../……com/wp-includes/http.php on line 1363

Have no clue why it would calculate this.

Maybe trying later may help.

I do use super cache.
Any suggestions/help would be appreciated – like a pointer in the right direction.
Thanks,
Michele

http://wordpress.org/extend/plugins/wordpress-mobile-pack/