Permalink or coding problem?

Hi. I’m using Duster theme and after I set up my site I tried to remove comments on my pages. I changed the script in the page and comments Then changed it all back again after no luck.

Suddenly the it came up ‘comments are closed’ and when I try to post a news feed on the main page the permalink is all messed up like: https://www.example.com/https://www.example.com/page

The news post show up on the main page but when clicking the post it goes to the example permalink address I wrote above and since it’s not a valid address it comes up: the page cannot be found?!

I didnt have a single problem before i tried to change page and comments in css script.

Anyone know how I can fix this?

Thanks,
Morten