webif locked

Hi to all
Testing for the first time Volumio on my x86 atom device… webif well done, no problem with great music database.
all right for a few minutes till i changed the mpd.conf file via ssh for better tune my devices config.
From that moment on the webif is locked and wheeling, no way to open the ui pages; the return to defaul mpd.conf file does not solve.
No log drives me to a solution, perhaps this posted one is the log corresponding to freeze?
Question: are there problems changing the mpd conf file? Or is this not the reason?
Can i reset some webif config files eventually changed?.. I don’t know where look at…
I don’t want to reinstall obviously…
thanks fo info

my cards:
volumio@volumio:~$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfbef8000 irq 27
1 [ST ]: AV200 - Xonar ST
Asus Virtuoso 100 at 0xd800, irq 17
5 [DAC ]: USB-Audio - USB Audio DAC
Burr-Brown from TI USB Audio DAC at usb-0000:00:1d.1-2, full speed
volumio@volumio:~$

It is the same problem as here: strange-problem-with-web-interface-254-x86-t7368.html
I build the volumio img in ubuntu on september 6, i don’t know what version is:

Can i solve upading a few components without reinstalling the OS?
Could anyone explain how to? Thanks in advance.

… and another question, please.
How volumio UI get managing of mpd config?
May I edit mpd config file?
How volumio read the audio cards connected to the device? Cause i Do not see in the webif the exact name …
i was reading something lke “multichannel” and… can’t remember others two entries…
here the cards output:
[quotevolumio@volumio:~$ cat /proc/asound/cards
0 [Intel ]
: HDA-Intel - HDA Intel
HDA Intel at 0xfbef8000 irq 27
1 [ST ]: AV200 - Xonar ST
Asus Virtuoso 100 at 0xd800, irq 17
volumio@volumio:~$ mpc outputs
Output 1 (alsa) is enabled
Output 2 (multiroom) is disabled
volumio@volumio:~$
[/quote]
thankssssss