Is there anything that appears in the 127.0.0.1:7777 page in the browser?
NXTprotocol detected Browser:
...
ws://127.0.0.1:7777/xxx
Your websocket connection status:
OPEN
setAccountInfo on http://127.0.0.1:6876/test description={"username":"your pc username"}
NXT. balance 0.00000000 <- need to send NXT
NXTcoins.co API test forms
Nodecoins available 0.00000000 (cashout costs 1 NXT)
and some forms after. 
what appears in the command line window?
(x.x.x.x) (x.x.x.x) (x.x.x.x) (x.x.x.x) [378720:9584] NOTICE: li
bwebsockets test server - (C) Copyright 2010-2013 Andy Green <andy@warmcat.com>
- licensed under LGPL2.1
[378720:9737] NOTICE: Initial logging level 7
[378720:9737] NOTICE: Library version: 1.3 unknown-build-hash
[378720:9737] NOTICE: IPV6 not compiled in
[378720:9737] NOTICE: libev support not compiled in
[378720:9737] NOTICE: static allocation: 4456 + (12 x 30000 fds) = 364456 bytes
[378720:9737] NOTICE: canonical_hostname = Win8
[378720:9737] NOTICE: per-conn mem: 152 + 1554 headers + protocol rx buf
[378720:9737] NOTICE: Listening on port 7777
init_NXTAPI timestamp.14508125
NXT. NXTsecret.(some secret)
{
"errorCode": 3,
"errorDescription": "\"account\" not specified"
}
() () () () [some secret]
hist.0 init_NXThashtables: 00F250C0 00F25340 00F25180 00F25680 00F25480
init_NXTsync
user name : >>>>>>>>>>>>>>> : x.x.x.x NXT.()
calling handlerinit.NXTcoinsco size.0
NXTcoinsco NXThandler_info init 0
back handlerinit.NXTcoinsco size.1
calling handlerinit.NXTorrent size.1
NXTorrent NXThandler_info init 0
back handlerinit.NXTorrent size.2
calling handlerinit.subatomic size.2
subatomic NXThandler_info init 0
back handlerinit.subatomic size.3
calling handlerinit.multigateway size.3
(x.x.x.x) is not gateway server
multigateway init 0 gatewayid.-1
call init_multigateway gatewayid.-1
IPaddr.(x.x.x.x)
extract_userpass cant open.(C:\Users\\AppData\Roaming\Dogecoin\dogecoin.conf)
coinid.4 DOGE cp.00000000
extract_userpass cant open.(C:\Users\\AppData\Roaming\Bitcoin\bitcoin.conf)
coinid.1 BTC cp.00000000
extract_userpass cant open.(C:\Users\\AppData\Roaming\Litecoin\litecoin.conf)
coinid.2 LTC cp.00000000
back handlerinit.multigateway size.4
NXTloop: 1633208335813638452
start RT NXTloop numforging.0 from (1633208335813638452)
NXT.94291 timestamp.14508120 lag.8 NEW block.(1633208335813638452) vs lastblock
.() -> ()
send 600 bytes to socket.416
multigateway new RTblock 0 timestamp.14508128
00F0FDE8 key.() len.0 is too big for NXTaddrs 24, FATAL
and many many last "fatal" lines 
did you set enforce POST to false in the .conf file for NXT?
My next release wont require you to do that, so you can wait for it (in a few hours) or manually change it in the current setup