the looping is part of the game 😂 if you can't get out of the loop try closing the app and trying again from the very beginning, you can use the 'skip' function to zoom through dialogue you've already seen and it'll stop automatically when it gets to something new!
It says error while you playing because it doesn't seem to charge well some of the images. Also *spoiler* there is no such thing as good ending or true ending, isn't it? it's just the bad ending isn't it? the "good ending" is stop to play this game... Am I right?*spoiler*