ACP > Templates > Global Templates > online_today_index > and Replace all code with this;
<tr><td class="tcat" colspan="2"><span class="smalltext"><strong>{\$lang->whos_online_today}</strong>[<a href=\"online.php?action=today\">{\$lang->complete_list}</a>]</span></td></tr>
<tr>
<td class="trow1" align="center" valign="center"><img src="{$theme['imgdir']}/online.gif" alt="Online" /></td>
<td class="trow1"><span class="smalltext">{\$lang->online_note_today}<br />{\$onlinemembers}</span></td>
</tr>
Upload online.gif in ./images/ folder.
done and now look like this
Replace above with this;
<tr><td class="tcat" colspan="2"><span class="smalltext"><strong>{$lang->whos_online_today}</strong>[<a href="online.php?action=today">{$lang->complete_list}</a>]</span></td></tr>
<tr>
<td class="trow1" align="center" valign="center"><img src="{$theme['imgdir']}/online.gif" alt="Online" /></td>
<td class="trow1"><span class="smalltext">{$lang->online_note_today}<br />{$onlinemembers}</span></td>
</tr>
many many thx for help now it`s fix