help

In the default theme he is displayed correctly, but in other themes he is not displayed correctly, I compared the style attributes of the default theme and didn't find anything different, I just can't find a way to do it, I need help!

Where can I receive help? I have installed a theme and the addons are not working in it. I have tried all free themes and audentio themes and add-on works. It is only the melody theme it does not. The add-on is called Post comments. In every thread there should be a button that says "Comment""...