mt-daapd crashes often!?

Hey,
ive got a problem: it hapens very often, that my daap server crashes. I realy do not know why. Im running this version: mt-daapd_0.9-svn-1586_edgy_i386.deb under under Ubuntu edgy.
when i start the server with “sudo mt-daapd restart” it works. but in the /var/log/mt-daapd i can read the following:

2008-03-22 12:55:45 (b7dc68c0): Firefly Version svn-1676: Starting with debuglevel 3

2008-03-22 12:55:45 (b7dc68c0): Plugin loaded: ssc-script/svn-1676

2008-03-22 12:55:45 (b7dc68c0): Plugin loaded: rsp/svn-1676

2008-03-22 12:55:45 (b7dc68c0): Plugin loaded: daap/svn-1676

2008-03-22 12:55:45 (b7dc68c0): Starting rendezvous daemon

2008-03-22 12:55:45 (b7dc68c0): Starting signal handler

2008-03-22 12:55:45 (b7dc68c0): Initializing database

2008-03-22 12:55:47 (b7dc68c0): Starting web server from /usr/local/share/mt-daapd/admin-root on port 3688

2008-03-22 12:55:47 (b7dc68c0): Listen port: socket/port in use

2008-03-22 12:55:47 (b7dc68c0): Error starting web server

2008-03-22 12:55:47: Aborting

2008-03-22 12:55:47 (b7dc68c0): Rendezvous socket closed (daap server crashed?) Aborting.

2008-03-22 12:55:47: Aborting

but the trange thing is, that i can reach the webserver!? (with 192.168.2.100:3688)

has anyone an idea what i should do to make this working again?

HF