The mandatory text (CDATA) inside tag 'head > style[amp-boilerplate]' is missing or incorrect.
<!doctype html><html amp lang="tr-TR"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no"><title>Example</title><link rel="canonical" href="http://www.example.com/okul-kombinleri/" /> <script src="https://cdn.ampproject.org/v0.js" async></script> <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Merriweather:400,400italic,700,700italic"><style amp-boilerplate>body {
-webkit-animation:0 8s steps(1,end) 0 1 normal both;
-moz-animation:0 8s steps(1,end) 0 1 normal both;
-ms-animation:0 8s steps(1,end) 0 1 normal both;
animation:0 8s steps(1,end) 0 1 normal both;
}
to {
visibility:visible;
}</style><noscript><style amp-boilerplate>body {
-webkit-animation:none;
-moz-animation:none;
-ms-animation:none;
animation:none;
}</style></noscript> 
