server disconnect client with no reason, need help

[Xuefer]

I made a custom build of deluge 1.3.11, linked to libtorrent: 0.16.19.0

i'm running both deluged and deluge-web (without daemonize), but when i open the web ui it always says Offline
with logging set to debug, server log shows:
[INFO ] 02:28:03 rpcserver:204 Deluge Client connection made from: 127.0.0.1:50632
[INFO ] 02:28:03 rpcserver:224 Deluge client disconnected: [(None, None, None)]
[INFO ] 02:28:03 rpcserver:204 Deluge Client connection made from: 127.0.0.1:50633
[INFO ] 02:28:03 rpcserver:224 Deluge client disconnected: [(None, None, None)]
client log shows:

[INFO ] 02:28:03 client:217 Connecting to daemon at 127.0.0.1:58846..
[INFO ] 02:28:03 client:121 Connected to daemon at 127.0.0.1:58846..
[INFO ] 02:28:03 client:224 Connection lost to daemon at 127.0.0.1:58846 reason: [(None, None, None), (None, None, None)]

full debug log attached, i wonder what happen to my build and what's going on here, need your suggestion tracking down the problem
config file is default as i can reproduce it after i remove all config files in the config directory letting it recreate the default one

[Xuefer]

never mind, it was due to old twisted lib, problem's gone after twisted is upgraded