Você precisa ter a âncora dentro do
{{#each}} <template name="meineEvents">
<ul>
{{#each event}}
<li>{{name}}
<a href="/eventDetails/{{_id}}">mehr Details</a></li>
{{/each}}
</ul>
</template>
{{#each}} <template name="meineEvents">
<ul>
{{#each event}}
<li>{{name}}
<a href="/eventDetails/{{_id}}">mehr Details</a></li>
{{/each}}
</ul>
</template>
