Hello, the back to top anchor link and button are broken on one of our sites. I've tried re-installing K2 over the top but the issue persists. We have countless sites that use K2 and this is the only one where we have experienced the problem. We are using the VP Merchant template but we have other sites that use this template and NO PROBLEM. I'm on the latest version of Joomla and know that CANNOT be the issue as I have other sites that are on the latest version of Joomla and the back to top button and link work.

Link - grimsbymodelcentre.co.uk/

What do I need to do to address this issue? Any assistance would be greatly appreciated?