I believe that the problem is caused by the link format you used when entering your home instance. To resolve this, you can try using the complete URL, which would be "https://lemmy.world" in your case.
I've made some improvements based on feedback from you and other users and just released a new version. This update includes a check for link format and better instructions on how to enter your home instance. In the background, I also improved the code that generates the redirect link to prevent future issues. (+ a few other improvements)
Please update the extension to the latest version and/or give it another try with the corrected link format. Thank you!
