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I've encountered an issue with the hard shell roof top tent we purchased. Specifically, there's a noticeable crack in the outer shell at the top, located in the gully area where the ladder is attached. This is concerning, as I want to ensure the tent remains safe and functional for our upcoming trips. Could you please provide guidance on how to effectively fix this issue? Are there any recommended repair kits or methods that would work best for this type of damage? Additionally, if there are any precautionary measures we should take to prevent similar issues in the future, that information would be greatly appreciated. Looking forward to your prompt response!