#help

Saw this in the morning. Was wondering what would cause this ? Other side doesn’t have this just this side (right end). What sits here behind the plastic piece ?

I’m Angel a happy telluride owner she’s a beautiful wolf grey SX NF AWD butterscotch nappa interior with the tow package. Just came here because of a post in one of the telluride groups I’m a part of and enjoy. As well as to see if any of you may be able to help me track down a OEM Kia...