Thank you MSolutions for letting us know. 

We moved away from Pretty Links when it did not work for php8. When we tested the new version we are seeing it put a heavy load on the servers when we have high traffic volumes.

https://una.io/page/view-discussion?id=8680 I am on a new install and tested on your DEMO site, and possibly other people will have the issue and not noticed it yet, but comment links are not working. Comment to '{object_title}' , Please look into this as I have so many comment notifications with comment links that do not work. When I go to disable the pretty links the already there comment links do not change only new ones work that did not use it. I tried to deactivate page/cmts-viewSystemsys,id,cmt_idcmts-view/:sys/:hashKey/:cmt_id from modules, but that does not help any as it will just keep generating the links. I would really hate to stop using it due to my already created links, so ignoring it for now as long as I can.