hi @Nick-Allain this error message:
[nodebb-plugin-blog-comments] Origin (https://fp.opposite-lock.com) does not match hostUrls: *
suggests that in the ACP the link to your blog is actually set as *.
I know you attached a screenshot showing otherwise, but could you double check and refresh the page (in case for ex., there was an error saving?) to see? If it's still an issue, I wouldn't mind temporary admin access to have a look, feel free to DM me for that