Copyright appears in one site, but not the other? more issues

Hey guys. I run two subdomains for my webcomics and they are both using the same exact plugins and themes (webcomic and inkblot). I checked the options of both side by side and they should have all the same settings. For some reason, though, inkblot shows my copyright on one webpage, but not the other…

http://lighthouse.nutmegnautilus.com/
http://denver.nutmegnautilus.com/

I also can’t customize the colors of the text on the menu pages at the top (about, characters, etc) at all! I can’t even change the copyright colors. The only text I’m in control of is text like “ye test again and again and again…”. Nothing I do works. I keep going into customize > color > links, but no matter what color I make any of the text, it doesn’t change at all, even when I save and publish. What causes this? Can I fix it?

I’m having a problem with the captions on my posts on each comic page too. In my “Denver” subdomain, my captions are all turning out to be the same no matter what I put in the description for my image. For example, page one’s caption should be “why is this happening” and the second page is “ye test again and again and again…”, but “ye test again and again and again…” is appearing as the description for all my pages. I need a fix for this too.

I’m also running into the issue of the fact I keep getting text on my site that says “Publish your first post!!” Even though I did already. I think the problem is wordpress doesn’t think the posts I make using the webcomic plugin are actual posts. I don’t know, though. Once again, I can’t get it to go away. The only fix I found was making an empty text post, but it shows up under my caption for my page and looks very bad. Is there a way to get it to disappear?

Finally, I can’t find out how to make my header centered on my page. I also don’t know how to change the size of the white box “page” on both my denver and lighthouse sites. I also don’t know how to pull in the body copy so it’s not so far to the left. I’m very new to creating websites and I’m very confused about what a child theme is or why I’m running into all of these problems. Please let me know if there’s anything I can do to fix these!!