Unable to Access Frequently Used Apps on My Regal Smart TV

I use a Vestel (Regal) Smart TV, and I can no longer access some of the apps I frequently use through the App Store. Shockingly, one of the apps disappeared on its own, and I’m unable to reinstall it. I have no idea how an app could delete itself, and this has been incredibly frustrating.

A Smart TV should provide reliable app access, but this issue has disrupted my experience significantly. I kindly request assistance in resolving this matter so I can reinstall and use the missing apps again. This functionality is a key part of the product, and I expect Vestel to address this issue promptly to ensure customer satisfaction.