How can I fix an error after updating my app handle?

[muhammad_haroon]

I updated the handle for my app in the shopify.app.toml file as follows:

but i face error 

plz help me

[BenHarkins]

It looks like handle only gets updated when you release a new version (after switching configs). I switched the handle, ran my production deployment, and the handle updated

With the Shopify CLI:

• shopify app config use
  • select your production config, with the updated handle
• shopify app deploy
  • updated handle now appears in the admin