Getting TemplateSyntaxError in Jinja 2

I am creating a to-do list using Flask and I have a base.html page, using this for the actual tags to organize the website

Getting the error

jinja2.exceptions.TemplateSyntaxError

jinja2.exceptions.TemplateSyntaxError: Encountered unknown tag 'endblock'. You probably made a nesting mistake. Jinja is expecting this tag, but currently looking for 'endfor' or 'else'. The innermost block that needs to be closed is 'for'.

My code:

{% extends 'base.html' %}

{% block head %}

{% endblock %}

{% block body %}
<div class="content">
    <h1>Task Master</h1>

    <table>
        <tr>
            <th>Task</th>
            <th>Added</th>
            <th>Actions</th>
        </tr>
        {% for task in tasks %}
            <tr>
                <td>{{ task.content }}</td>
                <td>{{ tasks.date_created.date() }}</td>
                <td>
                    <a href="">Delete</a>
                    <br>
                    <a href="">Update</a>
                </td>
            </tr>
        (% endfor %)
    </table>

    <form action="/" method="POST">
        <input type="text" name="content" id="content">
        <input type="submit" value="Add Task">
    </form>
</div>
{% endblock %}