All tickets › Category: Technical › wpvr/wpvr.php (v5.2.0) is required. Please update it before activating this plugin. I wonder what this is. 0 Vote Up Vote Down Orkun Biberci asked 11 months ago I wonder what this is. 1 Answers 0 Vote Up Vote Down C S Sultan Staff answered 11 months ago Hi, this means that you need to have the free version of WPVR installed and activated first, and then you can upload and activate the Pro plugin.