Please help! LITE-ON LTR-24102B door opens when inserting CD!

Please help!
My LITE-ON LTR-24102B CD R(W) door opens when inserting CD!
I.e. no CD R or RW can be read, written, or recognized from now on.

This began after burning several CDs to back up my hard drive.
Can anyone please help?

My PC is Compaq Presario - Windows XP

Thank you very much to anyone who can help!!

do you mean the tray is not closing when inserting cd’s or is it opening the tray again after insterting it??

please try to be more precise