Fatal error in Orca

Can anyone help me out here. I have installed the latest version of dolphin and have just finished putting in all the content and such. Just did a final test of all parts of the site before going live and when I clicked on forums I got this.

Fatal error: Out of memory (allocated 51642368) (tried to allocate 30145 bytes) in /home/donjim/public_html/comm/orca/inc/util.inc.php on line 236

So cant get into forums from any link not even through admin, anyone know what this problem is.

Thanks

Jim.

Search forums for:
out of memory

Yes have searched forums for this topic, none of which helps me as memory is set quite high. I am now also getting the same error in groups when I try to view topics or post topics.

As it is, my site is almost useless, as I don't have functioning groups or forums.

I did think and believe that with this new version of dolphin everything would have been fixed and working fine.