Error in browser "This page isn’t working, HTTP ERROR 502"

with docker pull markiantorno/validator-wrapper command I have created Image but while running this image it is giving me error like This page isn’t workingreimagined-happiness-rqr7w64pqvx3576r-46031.app.github.dev is currently unable to handle this request.
HTTP ERROR 502.

With that ... I wanted to implement this code in lambda and manage validations, So let me know how can I achieve this  