that may happen from time to time as one of the data sources has been having intermittent issues.
for something unrelated. i have implemented new countermeasures to block clients from grabbing the files to frequently.. if the site seems down to you, its ok, your jsut being blocked temporarily and will be allowed to connect again throughout the day so your guide stays up to date.. since kodi seems to ignore the refresh interval and jsut hammers the site anyways, it should autoupdate itself without issue.. if this method works well to get a handle on bandwidth i may increase the grab to a few days or more, this should also help with the missing data issue as your client will already have a lost of the data cached so missing data shouldnt be a problem.