You need to disable the PVR Stalker if you want to use the IPTV Stalker add-on with the same device info, mac and donation number. PVR Stalker continually checks its connection, even though you might not be using it, and if IPTV Stalker is in use, the PVR Stalker will start to nag you about losing connection. This is already in the instructions for the IPTV Stalker.