well your missing some html in that statement
try this above the tbopen
$tbopen
<tr>
<td colspan="5" class="darktable">
{$ubbt_lang['C_ONLINE']} $r {$ubbt_lang['C_ONLINE2']} $a {$ubbt_lang['C_ONLINE3']}
<br />
{$ubbt_lang['MAX_ONLINE']} $c_maxonline @ $maxonlinetime
<br />
</td>
</tr>
$tbclose
<br />
You can remove this part if you dont want the maxonline there
<br />
{$ubbt_lang['MAX_ONLINE']} $c_maxonline @ $maxonlinetime
