[[!+fi.error_message:notempty=`<div id="errors">
<p>Please review the following errors:</p>
<ul>
[[!+fi.error.name:notempty=`<li><a href="[[~[[*id]]]]#name">Name is a required field</a></li>`]]
[[!+fi.error.email:notempty=`<li><a href="[[~[[*id]]]]#email">Email is a required field</a></li>`]]
[[!+fi.error.comment:notempty=`<li><a href="[[~[[*id]]]]#comment">Comment is a required field</a></li>`]]
</ul>
</div>`]]
This question has been answered by bertoost. See the first response.
[[!+fi.validation_error:notempty=`<div id="errors">
<p>Please review the following errors:</p>
<ul>
[[!+fi.error.name:notempty=`<li><a href="[[~[[*id]]]]#name">Name is a required field</a></li>`]]
[[!+fi.error.email:notempty=`<li><a href="[[~[[*id]]]]#email">Email is a required field</a></li>`]]
[[!+fi.error.comment:notempty=`<li><a href="[[~[[*id]]]]#comment">Comment is a required field</a></li>`]]
</ul>
</div>`]]