# First steps in DCL SDK -\> Critical error in websocket

**URL:** <https://forum.decentraland.org/t/first-steps-in-dcl-sdk-critical-error-in-websocket/21953>\
**Category:** Support SDK\
**Created:** [February 13, 2024, 3:15pm UTC](https://forum.decentraland.org/t/first-steps-in-dcl-sdk-critical-error-in-websocket/21953 "2024-02-13T15:15:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![stgermain](https://avatars.discourse-cdn.com/v4/letter/s/8edcca/32.png) [@stgermain](https://forum.decentraland.org/u/stgermain)\
**Post date:** [February 13, 2024, 3:15pm UTC](https://forum.decentraland.org/t/first-steps-in-dcl-sdk-critical-error-in-websocket/21953/1 "2024-02-13T15:15:04Z")

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Can anyone assist me please?  
After following the tutorial “Quick Start” I tried to “dcl start” but my browser returns a critical error in websocket.  
I use Brave browser on a Windows 10 machine.  
Thank you.