UPGRADE 1.9.5 => 2.0.0 : liquidsoap doesn't start, and no log :-(

Hi,

I upgraded from airtime 1.9.5 to 2.0.0 with manual installation (minimal).

Everything ran good with DB and almost everything... but liquidsoap :-(
I checked all I found, but I don't understand why pypo can't run liquidsoap.
And there's no log into /var/log/airtime/pypo-liquidsoap/ls_script.log.

A few infos:
# airtime-check-system
AIRTIME_STATUS_URL             = http://localhost/api/status/format/json/api_key/%%api_key%%
AIRTIME_SERVER_RESPONDING      = OK
KERNEL_VERSION                 = 2.6.38-8-generic-pae
MACHINE_ARCHITECTURE           = i686
TOTAL_MEMORY_MBYTES            = 1024412
TOTAL_SWAP_MBYTES              = 1046524
AIRTIME_VERSION                = 2.0.0
OS                             = Ubuntu 11.04 i686
CPU                            = Intel(R) Pentium(R) 4 CPU 2.00GHz
WEB_SERVER                     = Apache/2.2.17 (Ubuntu)
PLAYOUT_ENGINE_PROCESS_ID      = 727
PLAYOUT_ENGINE_RUNNING_SECONDS = 15
PLAYOUT_ENGINE_MEM_PERC        = 0.8%
PLAYOUT_ENGINE_CPU_PERC        = 0.0%
LIQUIDSOAP_PROCESS_ID          = FAILED
LIQUIDSOAP_RUNNING_SECONDS     = -1
LIQUIDSOAP_MEM_PERC            = 0%
LIQUIDSOAP_CPU_PERC            = 0%
MEDIA_MONITOR_PROCESS_ID       = 17511
MEDIA_MONITOR_RUNNING_SECONDS  = 503
MEDIA_MONITOR_MEM_PERC         = 0.9%
MEDIA_MONITOR_CPU_PERC         = 0.6%
SHOW_RECORDER_PROCESS_ID       = 17501
SHOW_RECORDER_RUNNING_SECONDS  = 503
SHOW_RECORDER_MEM_PERC         = 0.8%
SHOW_RECORDER_CPU_PERC         = 0.0%
RABBITMQ_PROCESS_ID            = 840
RABBITMQ_RUNNING_SECONDS       = 2779
RABBITMQ_MEM_PERC              = 1.5%
RABBITMQ_CPU_PERC              = 0.0%

So everything but Liquidsoap is OK


And then: when I restart with
 # /etc/init.d/airtime-playout restart
Restarting Airtime Playout: start-stop-daemon: warning: failed to kill 3159: No such process
Done.

# airtime-check-system
AIRTIME_STATUS_URL             = http://localhost/api/status/format/json/api_key/%%api_key%%
AIRTIME_SERVER_RESPONDING      = OK
KERNEL_VERSION                 = 2.6.38-8-generic-pae
MACHINE_ARCHITECTURE           = i686
TOTAL_MEMORY_MBYTES            = 1024412
TOTAL_SWAP_MBYTES              = 1046524
AIRTIME_VERSION                = 2.0.0
OS                             = Ubuntu 11.04 i686
CPU                            = Intel(R) Pentium(R) 4 CPU 2.00GHz
WEB_SERVER                     = Apache/2.2.17 (Ubuntu)
PLAYOUT_ENGINE_PROCESS_ID      = 3574
PLAYOUT_ENGINE_RUNNING_SECONDS = 1
PLAYOUT_ENGINE_MEM_PERC        = 0.1%
PLAYOUT_ENGINE_CPU_PERC        = 0.0%
LIQUIDSOAP_PROCESS_ID          = STARTING...
LIQUIDSOAP_RUNNING_SECONDS     = -1
LIQUIDSOAP_MEM_PERC            = 0%
LIQUIDSOAP_CPU_PERC            = 0%
MEDIA_MONITOR_PROCESS_ID       = 17511
MEDIA_MONITOR_RUNNING_SECONDS  = 577
MEDIA_MONITOR_MEM_PERC         = 0.9%
MEDIA_MONITOR_CPU_PERC         = 0.0%
SHOW_RECORDER_PROCESS_ID       = 17501
SHOW_RECORDER_RUNNING_SECONDS  = 577
SHOW_RECORDER_MEM_PERC         = 0.8%
SHOW_RECORDER_CPU_PERC         = 0.0%
RABBITMQ_PROCESS_ID            = 840
RABBITMQ_RUNNING_SECONDS       = 2853
RABBITMQ_MEM_PERC              = 1.5%
RABBITMQ_CPU_PERC              = 0.0%

-- Your installation of Airtime looks OK!



Can you help me finding why liquidsoap can't neither start nor log?