keyboard hard to slide out

[Guest Aero]

Hi folks,

Kaiser fell out of its holster today - still works fine, but the keyboard doesn't like to slide out now, needs to be pushed evenly at both sides and has a bit of lateral play now B) It sometimes jams halfway open too.

Had a close look but can't see anything broken or cracked on the back. Is there anything I can do to tighten this up or improve it as it's really annoying?

Thanks in advance!