Error by installing Airtime

Hello,

I'm got following error when I installed airtime on my debian squezze vServer:
AIRTIME_STATUS_URL             = http://localhost:80/api/status/format/json/api_key/%%api_key%%
AIRTIME_SERVER_RESPONDING      = OK
KERNEL_VERSION                 = UNKNOWN
MACHINE_ARCHITECTURE           = UNKNOWN
TOTAL_MEMORY_MBYTES            = UNKNOWN
TOTAL_SWAP_MBYTES              = UNKNOWN
AIRTIME_VERSION                = UNKNOWN
OS                             = Debian GNU/Linux 6.0.6 (squeeze) x86_64
CPU                            = Intel(R) Pentium(R) Dual  CPU  E2200  @ 2.20GHz
WEB_SERVER                     = A
PLAYOUT_ENGINE_PROCESS_ID      = FAILED
PLAYOUT_ENGINE_RUNNING_SECONDS = 0
PLAYOUT_ENGINE_MEM_PERC        = 0%
PLAYOUT_ENGINE_CPU_PERC        = 0%
-- Displaying log file /var/log/airtime/pypo/pypo.log
-- 2013-01-10 21:42:43,001 DEBUG - [api_client.py : get_response_from_server() : line 92] - http://localhost:80/api/version/api_key/O6EU8JFSDF8XRYM2ZABU
-- 2013-01-10 21:42:43,001 ERROR - [api_client.py : get_response_from_server() : line 110] - Error connecting to server, waiting 5 seconds and trying again.
-- 2013-01-10 21:42:48,012 ERROR - [api_client.py : get_response_from_server() : line 88] - Error Authenticating with remote server: HTTP Error 500: Internal Server Error
-- 2013-01-10 21:42:48,012 DEBUG - [api_client.py : get_response_from_server() : line 92] - http://localhost:80/api/version/api_key/O6EU8JFSDF8XRYM2ZABU
-- 2013-01-10 21:42:48,013 ERROR - [api_client.py : get_response_from_server() : line 110] - Error connecting to server, waiting 5 seconds and trying again.
--
--
LIQUIDSOAP_PROCESS_ID          = FAILED
LIQUIDSOAP_RUNNING_SECONDS     = 0
LIQUIDSOAP_MEM_PERC            = 0%
LIQUIDSOAP_CPU_PERC            = 0%
-- Displaying log file /var/log/airtime/pypo-liquidsoap/ls_script.log
-- no errors
--
--
MEDIA_MONITOR_PROCESS_ID       = FAILED
MEDIA_MONITOR_RUNNING_SECONDS  = 0
MEDIA_MONITOR_MEM_PERC         = 0%
MEDIA_MONITOR_CPU_PERC         = 0%
-- Displaying log file /var/log/airtime/media-monitor/media-monitor.log
-- 2013-01-10 21:42:47,904 DEBUG - [Thread-2] [api_client.py : get_response_from_server()] : LINE 92 - http://localhost:80/api/list-all-watched-dirs/format/json/api_key/O6EU8JFSDF8XRYM2ZABU
-- 2013-01-10 21:42:47,904 ERROR - [Thread-2] [api_client.py : get_response_from_server()] : LINE 110 - Error connecting to server, waiting 5 seconds and trying again.
-- 2013-01-10 21:42:48,011 ERROR - [MainThread] [api_client.py : get_response_from_server()] : LINE 88 - Error Authenticating with remote server: HTTP Error 500: Internal Server Error
-- 2013-01-10 21:42:48,011 DEBUG - [MainThread] [api_client.py : get_response_from_server()] : LINE 92 - http://localhost:80/api/media-monitor-setup/format/json/api_key/O6EU8JFSDF8XRYM2ZABU
-- 2013-01-10 21:42:48,011 ERROR - [MainThread] [api_client.py : get_response_from_server()] : LINE 110 - Error connecting to server, waiting 5 seconds and trying again.
--
--
RABBITMQ_PROCESS_ID            = FAILED
RABBITMQ_RUNNING_SECONDS       = 0
RABBITMQ_MEM_PERC              = 0%
RABBITMQ_CPU_PERC              = 0%

what information are needed? to solve this problem.