What is Christingle?

 https://www.christiantoday.com/article/what.is.christingle/142478.htm

What is Christingle? Every year, thousands of children across the UK attend a Christingle service at a local church. This is the stor...

I'm afraid that, even though I have been invited to attend one such service, tonight - sadly, I am afraid that I am not prepared to enter a church which has, in the not too distant past, preached heresy.

I may make exceptions to attend weddings and funerals in dubious Anglican churches out of respect for relatives or friends but ... a line has to be drawn somewhere.