# App Sign-in has stopped working

**URL:** <https://community.thunkable.com/t/app-sign-in-has-stopped-working/2174216>\
**Category:** Questions about Thunkable X\
**Tags:** firebase, beginner, help\
**Created:** [December 10, 2022, 12:12pm UTC](https://community.thunkable.com/t/app-sign-in-has-stopped-working/2174216 "2022-12-10T12:12:06Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\
**Post date:** [December 11, 2022, 1:01am UTC](https://community.thunkable.com/t/app-sign-in-has-stopped-working/2174216/4 "2022-12-11T01:01:19Z")

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Here’s a method I use to debug blocks in Thunkable:

> [@Debugging in Thunkable X (Video)](https://community.thunkable.com/t/debugging-in-thunkable-x-video/849471):
>
> I thought I’d share a process I use for debugging my projects. It involves creating a function that can be used over and over throughout the code blocks in order to help determine where things are going wrong, whether or not certain blocks are ever triggering, and what the values of several variables are. Here’s a screenshot of what I’ve set up: The real power comes from being able to quickly change the delay (and even set it to 0 seconds) or just remo…

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