[SVN:101] Cannot post comments

I am unable to post comments. When I click on the comments tab it comes up fine, but when i click submit i get the following error.

Code:

** Comment could not be added! **
The page you are trying to access does not exist.
Please select a page from the main menu.

Current Settings:

Url:

Code:

index.php?option=&Itemid=99999999&page=inline&id=&catid=2&mosmsg=%2A%2A+Comment+could+not+be+added%21+%2A%2A

On another test site I have you are able to post comments but you get the following error:

Code:

** Comment added succesfully **
The page you are trying to access does not exist.
Please select a page from the main menu.

Also I am unable to delete these comments that can be added to the site.
Also when a comment is added to one image it seems that the comment is added to all other images inside that gallery.