Small bug report
On these pages:

https://www.jazz2online.com/user/{user_id}/{username}/reviews/page/{>=2}

The "< Previous" button has an extra "}" at the end of its hyperlink. Clicking it takes you back to that user's profile page instead of the previous reviews page.

Another thing I noticed is that the number of review pages is wrong. For example, my Reviews page only shows two pages, even though pages 3 and 4 exist and are accessible by simply modifying the URL.