Hi there @Lisawillsp and welcome to the Community!
I am sorry you've experienced issues with our beloved BubbleGum Troll. He can be a bit cheeky at times. Please clear cache and cookies from your device and keep on playing a few levels and he should re-appear eventually.
There's a 2nd Bubblegun Troll event that's recently started. I've been playing, hasn't disappeared like the last one but there are issues..... I just saw my points reduced from 425 to 400. What is going on?
Sorry to hear that @Chokmah that would be a technical issue so you would have go into the support page and ask them sorry 😐 I can’t help you with that keep on playing