FOP2 +FreeSWITCH receive events

[Kate]

Hello.
I have FOP2 version 2.31 and FreeSWITCH Version 1.6.10. FOP2 was configured according to instructions http://members.asternic.biz/knowledge_base/howto-how-to-configure-fop2-to-work-with-freeswitch but all extension buttons in the Buttons tab stay green all time.
I tested the configuration and ESL connection with the command "/usr/local/fop2/fop2_server --test" and received answer "Connection to event socket OK!"
In fop2_debug.log I sow that fop2 sent events after actions, but fop2 not received any events (registration, incoming call etc.)
How I can fix it. Thank you.

[nicolas]

Start fop2_server with full server debug mode

/usr/local/fop2/fop2_server -X 3

And see the event flow between ESL and fop2_server, do you notice anything in particular? Some error or similar?

[Kate]

Hello.
I ran the server with the -X 3 options and attach the last few entries.
I receive error in callback (ignoring): Can't call method "getMembers" on an undefined value at script/fop2_server.pl line 10151.
How I can fix it. Thank you.

[Kate]

We use Debian 8.5 64 bits

[nicolas]

Remove your queue button definition from buttons_custom.cfg and try again.... are you using mod_callcenter?

[Kate]

I didn`t configure queue button. My file buttons.cfg contain only 2 extension buttons.
Yes, I am using mod_callcenter.