Blank AMP page

Can you please share your Error_log file from your server? So we can analyse it and help you fix the issue for you.

For Reference to find error_log file : https://www.hostkarle.in/blog/how-to-fix-there-has-been-a-critical-error-on-your-website-wordpress-error

error log page is blank, also contacted with the host they claim there was no error log in server-side too.

Can you please update to 1.0.5 and see if you are having the same issue?