You need a PoE+ power to power the AP. Chocolate-mode APs are directly connected to the network by Ethernet cable, while also needing power in the form of an AC wall adapter. They are commonly used in areas that lack PoE infrastructure. PoE technology makes it easier to install in places where power outlets are not available, the APs. PoE switches can transmit both data and electrical power over a single Ethernet cable, making them ideal for devices like IP cameras, wireless access points, and VoIP phones. These switches follow IEEE standards such as 802. Your options are a) remove the PoE injector and install a switch which supports PoE instead between.