event repeat, event repeat view crashes my site

I enabled repeat and set it to each day each week at the same time

I would set the date
Hit submit
get a blank screen
refresh
be logged out have to log back in

I also could not signup for an event. Is event repeat compatible with signup module?

I got this in the error logs:
Imagefield failed to create directory(0/event) at ().
IS THIS SUPPOSED TO CREATE "0/EVENT"? All other images and imagecache work fine.

Another error:
The directory files is not writable, because it does not have the correct permissions set. Yet it is set and all other modules write to it just fine

implode() [function.implode]: Invalid arguments passed in /var/www/vhosts/beta.activelyOUT.com/httpdocs/sites/all/modules/views/modules/views_node.inc on line 677.