Trouble closing boot lid off hatchback

Hi i'm having trouble closing my boot lid all of a sudden. It doesn't seem to close when i press it down gently or slamming it down.
The impact is a spongy-like feel when i close it. Like a rubber stuck in between.
Has anyone experience this before or could advise what i should do to troubleshoot it? Thanks in advance....
The impact is a spongy-like feel when i close it. Like a rubber stuck in between.
Has anyone experience this before or could advise what i should do to troubleshoot it? Thanks in advance....