[HTML] pobierz, plaintext 
<noscript><img  src="http://stat.4u.pl/cgi-bin/s.cgi?i=iden&amp;r=ns" alt="" /></noscript>
[HTML] pobierz, plaintext 

document type does not allow element "img" here; missing one of "p", "h1", "h2", "h3", "h4", "h5", "h6", "div", "address", "fieldset", "ins", "del" start-tag

....cgi?i=iden&amp;r=ns" alt="" /></noscript>

The mentioned element is not allowed to appear in the context in which you've placed it; the other mentioned elements are the only ones that are both allowed there and can contain the element mentioned. This might mean that you need a containing element, or possibly that you've forgotten to close a previous element.

One possible cause for this message is that you have attempted to put a block-level element (such as "<p>" or "<table>") inside an inline element (such as "<a>", "<span>", or "<font>").