# 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:** 5

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**Author:** ![andos-avlog](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/andos-avlog/32/122340_2.png) [@andos-avlog](https://community.thunkable.com/u/andos-avlog)\
**Post date:** [December 12, 2022, 4:00pm UTC](https://community.thunkable.com/t/app-sign-in-has-stopped-working/2174216/5 "2022-12-12T16:00:53Z")

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Hi @tatiang, please see link to see what happened when I copied your blocks. I accidentally replied to the link you posted.

> [@Debugging in Thunkable X (Video)](https://community.thunkable.com/t/debugging-in-thunkable-x-video/849471/6):
>
> Hi @tatiang, using the video you sent to me, I created the Debug blocks (See below) Debug blocks [Debug\_Variable\_Block-Screenshot 2022-12-12 15.07.43] [Debug Blocks-Screenshot 2022-12-12 15.06.50] I then tried to get them to work to find my issues by adding a User\_Values\_Label to the Debug blocks. The plan was to find if my Login Page was searching for my Username during the Login process. See video for what happened: [https://youtube.com/shorts/ZEI4W-9GP5g?feature=share](https://youtube.com/shorts/ZEI4W-9GP5g?feature=share) Andos

Andos.

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