I’m new to IPTV, and I don’t know if this happens often, but yesterday I went on to IPTV to watch an episode of the Simpsons and it wasn’t there, I checked the other show I watch, Impractical Jokers, and it wasn’t there as well. Is this a regularly occurring this, or a glitch?
Providers lose sources and gain other sources all the time. If you’re talking about the channels those shows air on (Fox I think) most providers will have those stations but since they change sources from time to time it may disappear from your favourites list, just go to the full list and re-add that channel. If you’re talking about those series on VOD, video in demand features are regularly changed with series and films being added and deleted all the time. In that case just contact your provider to request the series again.
syncler + real debrid
You should probably be talking to your provider.