reneesanguinetti on "admin backend edit issues"

Hello,
Zenphoto version 1.4.3.1 [10646] (Official build)
Current gallery theme: zpFocus v_1.4.3
For the past 2 days I have been experiencing difficulties when trying to edit albums and images. When I try to view an album or it's images, the edit page takes 10 to 15 minutes to load or sometimes truncates. (viewing and saving). The other features of the admin seem to respond normally. I tried selecting a single image for the albums instead of random and also set the image page to display only 5 images. That doesn't help. My host said their are no issues with the server and suggested I use their check and repair feature for my sql database and the optimize feature in phpmyadmin. I used those and everything checked out OK. I even re-run setup.
I haven't made any changes recently and the only errors in the logs are:
{Tue, 30 Oct 2012 16:37:04 GMT}
Backtrace: NOTICE: Undefined variable: firstPageImages in /home6/advertk3/public_html/themes/zpfocus/search.php on line 126
include called
from index.php [92]
{Tue, 30 Oct 2012 16:49:58 GMT}
Backtrace: WARNING: Invalid argument supplied for foreach() in /home6/advertk3/public_html/zp-core/class-rss.php on line 1021
RSS->printRSSfeed called
from index.php [18]
I'm not sure of why I get these warnings because I haven't changed anything.
Any suggestions of how to fix the warnings and the admin edit would be greatly appreciated.
Thank-you! Renee