How can I resolve an app installation error?

Shopify Apps
1

Hi Team,

I am running npm serve under web folder, I am using my own url but when i try install below errro coming please attached image for, please help me how to fix this issue.

2

screen shot for reference

3

this error coming in browser console

Failed to execute ‘postMessage’ on ‘DOMWindow’: The target origin provided (‘’) does not match the recipient window’s origin (‘’).
?hmac=c3a3dfcc24aa98707a2cb006440c8ae9baf15bdc7b18cf205c60ca201fe41aa2&host=ZXBjaXQubXlzaG9waWZ5LmNvbS9hZG1pbg&shop=epcit.myshopify.com&timestamp=1657726346:35 Failed to execute ‘postMessage’ on ‘DOMWindow’: The target origin provided (‘https://epcit.myshopify.com’) does not match the recipient window’s origin (‘https://b4b1-49-205-146-229.ngrok.io’).