カレンダーのHTML

なぜかカレンダーのHTMLが消えてしまうので下記にメモ
<table class="CalendarMoveTable">

<tr class="CalendarMoveTr">
<td class="CalendarPrevTd">
<a href="<!--$plugin_calendar_prev_link-->">&lt;<!--$plugin_calendar_prev_mon--></a>
</td>
<td class="CalendarNowTd"><!--$plugin_calendar_now_year-->/<!--$plugin_calendar_now_mon--></td>
<td class="CalendarNextTd">
<a href="<!--$plugin_calendar_next_link-->"><!--$plugin_calendar_next_mon-->&gt;</a>
</td>
</tr>

</table>

<table class="CalendarTable">
<tr class="CalendarWdayTr">
<th class="CalendarWdaySun">S</th>
<th class="CalendarWday">M</th>
<th class="CalendarWday">T</th>
<th class="CalendarWday">W</th>
<th class="CalendarWday">T</th>
<th class="CalendarWday">F</th>
<th class="CalendarWdaySat">S</th>
</tr>

<!--plugin_calendar-->
<tr class="CalendarTr">
<td class="CalendarTdSun"><!--$calendar_sun--></td>
<td class="CalendarTd"><!--$calendar_mon--></td>
<td class="CalendarTd"><!--$calendar_tue--></td>
<td class="CalendarTd"><!--$calendar_wed--></td>
<td class="CalendarTd"><!--$calendar_thu--></td>
<td class="CalendarTd"><!--$calendar_fri--></td>
<td class="CalendarTdSat"><!--$calendar_sat--></td>
</tr>
<!--/plugin_calendar-->

</table>
なぜ消えてしまうのかは不明。おそらくバグかサーバーの負担が高いかのどちらかでしょう。