OK, so nginx's error logs indicate that for whatever reason, nginx is not redirecting to /nickserv and other such things after login. I'm still unable to get nginx to redirect to the webcpanel or m_httpd... or something because I have no idea what's going on in order to fix it.
Sample errors:
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:01:58:52 +0000] "GET /static/style.css HTTP/1.1" 200 1041 "https://services.furryavalon.net/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:01:58:52 +0000] "GET /static/logo.png HTTP/1.1" 200 19247 "https://services.furryavalon.net/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:01:58:52 +0000] "GET /static/cubes.png HTTP/1.1" 200 723 "https://services.furryavalon.net/static/style.css" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:01:58:56 +0000] "POST / HTTP/1.1" 302 0 "https://services.furryavalon.net/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:02:06:36 +0000] "GET / HTTP/1.1" 200 840 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:02:06:36 +0000] "GET /style.css HTTP/1.1" 404 14 "https://services.furryavalon.net/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:02:06:36 +0000] "GET /logo.png HTTP/1.1" 404 14 "https://services.furryavalon.net/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:02:06:37 +0000] "GET /favicon.ico HTTP/1.1" 200 3774 "https://services.furryavalon.net/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:02:06:44 +0000] "POST / HTTP/1.1" 302 0 "https://services.furryavalon.net/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
2001:470:7c:37e:c9d4:737f:5f66:9787 - - [12/Dec/2015:02:09:23 +0000] "GET / HTTP/1.1" 200 844 "-" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
Those IPs are mine. I'm not concerned about people finding those IPs.