Bmw 330i e90 code P0366

[Dawie #3]

Hello bmw fanatics.. I had the engine light come on and off for a few seconds this morning after i started the car.. I ran a diagnosis and had the below code pop up "P0366 Camshaft Position Sensor B Circuit Range/Performance Bank 1"
Does any one know what could be the issue.. Bmw e90 320i 2009 face-lift

I noticed i have lack of power and higher fuel consumption over the few days.

Thanks in advance