The log error is related to the weather fanart option, and won’t have any bearing on any IPTV addon. However, I’ve noted it and will fix it soon.
The visibility conditions for the Live TV/Radio menu items depends on what version of the Skin Shortcuts script you’re running. If you’re running the Kodi repo version, they’re designed to show if the PVR client reports you have TV or Radio Channels respectively. In the current development version, they show if you have a PVR client enabled. However, you can change an option in the scripts settings to always show them if their automatic visibility conditions aren’t working correctly.