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<p class='comment-footer'>
<b:if cond='data:post.allowComments'>
<a expr:href='data:post.addCommentUrl' expr:onclick='data:post.addCommentOnclick'>
<data:postCommentMsg/></a>
</b:if>
</p>

Change the Above Code with This Code

<p class='comment-footer'>
<b:if cond='data:post.embedCommentForm'>
<b:include data='post' name='comment-form'/> <b:else/>
<b:if cond='data:post.allowComments'>
<a expr:href='data:post.addCommentUrl' expr:onclick='data:post.addCommentOnclick'>
<data:postCommentMsg/></a>
</b:if> </b:if>
</p>