Copying this from the support thread:
Something that you may want to pass along to the board developers that I just uncovered in my testing:
When navigating to a topic in the site using https://..., the pagination fails to load as we get client-side errors when attempting to jump between http:// and https://. However, http://... has worked every time that I have tested pagination. I suspect that this works because http:// doesn't care if resources are served up via http:// or https://, it just works. This has been the case with every single one of my tests on several random threads across multiple boards on the site.
NOTE: it is not recommended to navigate to a site over http as it is not a connection secured with an SSL certificate.
As an example using the support thread:
http://www.hoosiersportsnation.com/index.php?/topic/10367-ok-we-must-stop-this-crashing-server-thing/page/2/ will work properly
https://www.hoosiersportsnation.com/index.php?/topic/10367-ok-we-must-stop-this-crashing-server-thing/page/2/ will not allow page changing
In short, if you see a padlock to the left of the address bar then the site is over https and will not allow page changes. If you see a "Not Secure" message instead of a padlock, then you are on http and paging should work without issue.