Whilst this persists, no other menu on the dashboard is accessible

if you have alot of photos already uploaded then i would wait for ross to come up with a update ideah for your tables but if you do not care about loosing your pics you can completely uninstall the photo plugin and remove this will delete the sql table also and just manually install the plugin. You can download it for free from the store.

PM me your Cpanel access details and admin website access details, I'll take a look at the issue. 

Hi Ross- details sent

Cheers!

I need CPanel access details not FTP

Ok, nevermind, please see, I have updated the photo plugin. now everything is ok.