This laptop has two different types of feet. During reassembly, make sure the feet go in their correct recesses.

The rear feet have a single center clip.

The front feet have three clips and can only be reinserted one way.

Press the feet into their recesses to secure them to the frame.

If the existing feet no longer adhere to the frame, remove the old adhesive and apply a small amount of Tesa Tape where the old adhesive was.