Mac track Plugin & Error

[mamekedi]

Hello All,

i just installed the mactrack plugin it's telling met the new run is Next Run Time: 1970-01-01
how is that possible my clock settings are oke

i also got this errors from the logging

MACTRACK: Poller[0] ERROR: Can not start MAC Tracking process. There is already one in progress


SYSTEM MACTRACK STATS: Time:0.0011 ConcurrentProcesses:7 Devices:0

Please help