OT: Error wireless

To Group :

i have 1242 AG and 3524 inline power POE switch and using poe injector for AP
.My AP was running fine but suddenly

i m getting following error

Mar 1 00:00:23.340: %CDP_PD-2-POWER_LOW: All radios disabled -
LOW_POWER_CLASSIC_NO_INJECTOR_CONFIGURED WS-C3524-PWR-XL (000a.f4f2.28c1)
*

Mar 1 00:00:23.340: -Verify the required power-injector is installed on this
port: WS-C3524-PWR-XL(Fas 0/1).
*
Mar 1 00:00:23.341: -If a power-injector is installed, issue the
command:"power inline negotiation injector installed"

how to resolve it one thing no anteena install still having error
Received on Tue May 11 2010 - 20:50:55 ART