Asterisk Gui: music on hold don't go

i have a problem with music on hold because i try to upload from the page in asterisk gui but it not upload file.
So i upload music direct from shell or with an ftp software.

If i try to call my number i see this message on the cli:

Connected to Asterisk 11.16.0 currently running on centralino (pid = 1517)
== Using SIP RTP CoS mark 5
– Executing [s@DID_trunk_2:1] Goto(“SIP/trunk_2-00000006”, “queues,6500,1”) in new stack
– Goto (queues,6500,1)
– Executing [6500@queues:1] Queue(“SIP/trunk_2-00000006”, “6500”) in new stack
– Started music on hold, class ‘Attesa’, on SIP/trunk_2-00000006
== Using SIP RTP CoS mark 5
– SIP/106-00000007 connected line has changed. Saving it until answer for SIP/trunk_2-00000006
[Feb 11 17:21:18] WARNING[3191][C-00000017]: format_wav.c:102 check_header_fmt: Not in mono 2
[Feb 11 17:21:18] WARNING[3191][C-00000017]: file.c:399 fn_wrapper: Unable to open format wav
[Feb 11 17:21:18] WARNING[3191][C-00000017]: res_musiconhold.c:339 ast_moh_files_next: Unable to open file ‘/var/lib/asterisk/moh/guimohdir_Attesa/jubel_mono_2’: No such file or directory
– Stopped music on hold on SIP/trunk_2-00000006
== Spawn extension (queues, 6500, 1) exited non-zero on 'SIP/trunk_2-00000006’

I don’t undestand why asterisk don’t see file jubel_mono_2 and i don’t undestand other 2 warnings
Directory and file have asterisk group and asterisk owner.

Someone can help me?

The Asterisk-GUI project is not maintained. Development on that GUI project was ceased 4 years ago.

:frowning: and what i can do? :frowning:
Can i install freepbx now? I have to delete asterisk gui or i can install with asterisk gui installled?
You know i tutorial for install only freepbx on centos 6.5?
I used many guide but always i found some error ;(