Re not opening up properly, sounds like the Modded or Kodi pack was used. Wipe data. Settings, Apps, XBMC or Kodi or similar, Force Stop, Confirm, Clear Data, Confirm. Re-run Wizard, Confluence pack.
Re the PVR client/add-on being enabled. To just disable that, should it happen again, open XBMC/Kodi...
System>Add-ons>Enabled Add-ons>PVR Add-ons>Click on add-on>Uninstall
Media Portal menu will now be found under Video>Add-ons