Imobolizer Stopped Working
 

I have this immobolizer that I have to touch to my ignition when the key is in the on position and usually it is makes the battery and check engine light and all the lights that are normal on the dash turn on until I start my car. When I tap the immobolizer to the dash usually it stops beeping from the key being in the on position and the car will start.
Today I went to start my car but the immobolizer will not work. They key just keeps beeping in the on position and the imobolizer wont kick in the electrical to start the car.
The car will not start without it, and suggestions? What could have happened? It was fine last night, I don't get it.
Please help, any advise would be great
thanks