I was able to replicate your issue.
https://odysee.com/discourseerror:4 (added a video of it)
A similar issue Site is not reachable googleadservices - #8 by Septinus
Off-topic-
I think ‘https everywhere’ extension is not needed. It has become redundant for quite awhile. Afaik, EFF themselves have stopped advocating or maintaining it. Brave already has an in-built https everywhere support. Afaik, Firefox in recent updates also added https everywhere by default.
Also, having too many extra extensions adds to bloat and may harm your privacy since it becomes easy to fingerprint.
But, if you still need to use it due to certain features from the extension, then it is upto you.