There's seem be an issue when some forums are more then one page

Sample https://www.gametracker.com/games/cs/forum.php?post=435725#cfrmpsts

Page 1 link don't work when on page 2 or if on page 1, next or page 2 don't work

This is a problem with chrome mobile and PC

Have not tested on any other explorer

This has been an issue for a while now.

A report was made here.

Even further elaboration in #10.

Ah i see they must be using an outdated code or glitch in the design of these forums

As suggestion perhaps use https://www.vbulletin.com/ , i use this and i have no troubles and cost is not bad