A test authorization for shop.agit-global.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching https://shop.agit-global.com/.well-known/acme-challenge/cRDS-GSakkigUcewUBBAcrJsYxNgvRjCqdGCFG-DNfE/: No valid IP addresses found for shop.agit-global.com