Plastic cover on bottom bracket/ motor.

[pamdo]

Hi. Has anyone had this problem? Recently I’ve had worsening creaking (plastic sounding) in the are of the bottom bracket. Yesterday I had a look underneath and tried to tighten the 2 screws holding the (motor?) cover. The screws just kept turning and not holding the cover at all. I had the rear light replaced last year so whether the cover hadn’t been correctly fitted or whether the cover had just moved around a bit with vibration while riding and the screw holes got deformed I don’t know. I loosened the screws and was able to push the cover closer to the frame and re-tighten the screws. The creaking seems to have stopped when pressing on the saddle, so I’m hoping the screws will stay in place. I’ve stuck some blu-tak over the screws in the meantime. I think either some tiny washers might help, otherwise a new cover?