AMP error

Error The tag ‘link rel=canonical’ appears more than once in the document.
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9
Error Tag ‘amp-story’ is not allowed to have any sibling tags (‘body’ should only have 1 child).
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8
Error The parent tag of tag ‘html’ must be ‘!doctype’.
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2
Error Missing URL in HTML tag amp-story.
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2
Error A tag on this page requires an AMP component ‘script’ tag, which is missing.
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2
Error A mandatory AMP HTML tag is missing from this document.
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2
Error Tag found outside the document head which is only allowed as a direct child of the document head.
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2
Error Only amp-boilerplate and amp-custom ‘style’ tags are allowed, and only in the document head.
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2
Error Custom JavaScript is not allowed.
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2
Error Disallowed attribute or attribute value present in HTML tag.
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2