# Help! White screen on web viewer and live

**URL:** <https://community.thunkable.com/t/help-white-screen-on-web-viewer-and-live/3246184>\
**Category:** Issues / Bugs\
**Tags:** beginner, help\
**Created:** [October 3, 2024, 5:43pm UTC](https://community.thunkable.com/t/help-white-screen-on-web-viewer-and-live/3246184 "2024-10-03T17:43:01Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pedroolisboa18f14hjz](https://avatars.discourse-cdn.com/v4/letter/p/c89c15/32.png) [@pedroolisboa18f14hjz](https://community.thunkable.com/u/pedroolisboa18f14hjz)\
**Post date:** [October 3, 2024, 5:43pm UTC](https://community.thunkable.com/t/help-white-screen-on-web-viewer-and-live/3246184/1 "2024-10-03T17:43:01Z")

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Hi! I was trying to see how it was going the blocks that i created for auth and validation but, when I tried to see on web previewer my just show a blank screen, and I dont know why.

When I refresh the web preview it shows fastly the design but disappear

Project Link: [Thunkable](https://x.thunkable.com/projects/66fadef1143fc165d13f021d/7836e0ce-fb10-4320-9e57-54ec7dc1d14d/designer)

 ![22](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/e/1/e1f075cecfd2bae818c578ff5fdf402b5df89aa7.png)  
 ![11](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/b/a/ba06032511da5fd5752bce37b24870533de78c9f.png)

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [October 4, 2024, 11:31am UTC](https://community.thunkable.com/t/help-white-screen-on-web-viewer-and-live/3246184/2 "2024-10-04T11:31:24Z")

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Hello @pedroolisboa18f14hjz  
I checked your project.  
The blocks navigate the user to the next screen immediately after the “screenRegister&Login” screen is open.  
This is happening because you initialize the app variable storedUserID to True so is not null always.  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/b/3/b3a5db6c0158fb48f017c66b06aa60ca83347485.png)  
You can change the variable to “stored”:  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/2/9/29faaf9125cc2e6924c93dafa655206b093cdee9.png)

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<div class="post-metadata">

**Author:** ![pedroolisboa18f14hjz](https://avatars.discourse-cdn.com/v4/letter/p/c89c15/32.png) [@pedroolisboa18f14hjz](https://community.thunkable.com/u/pedroolisboa18f14hjz)\
**Post date:** [October 4, 2024, 2:59pm UTC](https://community.thunkable.com/t/help-white-screen-on-web-viewer-and-live/3246184/3 "2024-10-04T14:59:18Z")

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Oh, i didnt see that.  
Thanks for helping!