Can't run the Gatsby front-end

[anta199]

Describe the bug
After setting up the Sanity studio and trying to run the front-end on Gatsby via gatsby develop I get the next error:

Error in ".../gatsby-node.js": projectId can only contain only a-z, 0-9 and dashes
not finished open and validate gatsby-configs, load plugins - 2.830s

To Reproduce
Steps to reproduce the behavior:

1. Start and deploy Sanity studio and edit .env info
2. Rungatsby develop in /web folder to set front-end
3. Next issue arises Error: projectId can only contain only a-z, 0-9 and dashes
4. No possibility to run front-end

Expected behavior
Availability to run the Gatsby front-end for the starter

Desktop (please complete the following information):

• OS: MacOs
• Browser Chrome
• Version 93.0.4577.63

Additional context
First of all thanks for the great work putting this together. And secondly, excuse if this issue comes from my inexperience :-)