Hey,I have just disconnected myself from the VATSIM network due to my aircraft going haywire!I was just about to touchdown on runway 05L at Manchester when all of a sudden the aircraft lifted speed dropped into the red! I attempted to raise the gear but this would not happen. I applied full thrust but my speed was constantly up and down. I tried to execute a missed approach however the aircraft was banking to the left and I couldn't do much with it. The autopilot was disconnected I tried to raise the flaps again this did not happen!I how no idea what happened.Very disappointed!