AMP iFrame Issue

I analyzed my website using the GTMETRIX tool.
And got the following error:
https://snipboard.io/eVTNtc.jpg
https://snipboard.io/IuJftR.jpg

This is causing a lot of blocking time even without loading.

I found this line in the header. Can I remove it? If yes, I hope it won’t cause any issue in the SEO and site performance.
https://snipboard.io/lhB1nQ.jpg

Please reply to me as a newbie 🙂 Love you Ahmed Sir Big FAN 🙂

The page I need help with: [log in to see the link]