I've added

at the image page of theme garland. REMARK: I was forced to use an other theme than the default one to view images (!!!) I have activated the comment plugin and a test album allowing comments.
Now, the comment box doesn't appear there: only
"Geen reacties", which means 'no reactions' and "Reageer", which means 'React' are there in the commentcontent element. How can I make the comment function to work? I've searched for hours!

Edit: default theme shows now images but to have a box to type comment, I have to use a theme like zpMobile. Did I wasted hours at some bugs???

Sorry, we will need more info to help. For example are there any errors? All standard included themes support comments, of course the comment_form plugin must be enabled and comments allowed for the item type (->comment options) and also openend (->on each item, enabled by default).