AMP syntax Errors

Hi, how to eliminate syntax errors on AMP pages?
For example: https://mobirank.pl/2016/03/27/facebook-omylkowo-uruchomil-safety-check/amp/

In developer mode > Console there is a lot of errors”

Powered by AMP ⚡ HTML – Version 1458430572640
Failed to load resource: net::ERR_RESPONSE_HEADERS_TRUNCATED
Failed HTTP request for  <img amp-img-id=​"AMP_2" class=​"-amp-fill-content -amp-replaced-content -amp-error -amp-element-error -amp-ghost" width=​"24" height=​"24" src=​"https:​/​/​secure.gravatar.com/​avatar/​49b9bbc6aca5ae93e4d19ab85fe7415e?s=24&r=g" error-message=​"task failed:​ amp-img#2#L amp-img#2:​ Failed HTTP request for img.​​​​​​">​::before​</img>​ .
Uncaught Error: task failed: amp-img#2#L amp-img#2: Failed HTTP request for img.​​​
Uncaught (in promise) Error: Failed HTTP request for [object Window].​​​(…)
AMP validation had errors:
https://mobirank.pl/2016/03/27/facebook-omylkowo-uruchomil-safety-check/amp/:333:0 The tag 'script' is disallowed except in specific forms.
Failed to load resource: net::ERR_RESPONSE_HEADERS_TRUNCATED
Failed HTTP request for  <img amp-img-id=​"AMP_5" alt class=​"-amp-fill-content -amp-replaced-content -amp-error -amp-element-error -amp-ghost" width=​"80" height=​"80" src=​"https:​/​/​secure.gravatar.com/​avatar/​?s=160&r=g" error-message=​"task failed:​ amp-img#5#P amp-img#5:​ Failed HTTP request for img.​​​​​​">​::before​</img>​ .
Failed HTTP request for  <img amp-img-id=​"AMP_4" alt class=​"-amp-fill-content -amp-replaced-content -amp-error -amp-element-error -amp-ghost" width=​"80" height=​"80" src=​"https:​/​/​secure.gravatar.com/​avatar/​?s=160&r=g" error-message=​"task failed:​ amp-img#4#P amp-img#4:​ Failed HTTP request for img.​​​​​​">​::before​</img>​ .
Uncaught Error: task failed: amp-img#5#P amp-img#5: Failed HTTP request for img.​​​
Uncaught Error: task failed: amp-img#4#P amp-img#4: Failed HTTP request for img.​​​

https://ww.wp.xz.cn/plugins/amp/