Błąd Cytowanie

wersja skryptu MyBB: 1.6.9
adres forum:
na czym polega problem (screen, opis, komunikaty, nazwa stylu/theme/szablonu): Gdy naciskam "CYTUJ" i cytuj teraz to taki błąd wyskakuje:

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        #mybb_error_content h2 { font-size: 12px; padding: 4px; background: #B60101; color: #fff; margin: 0; }
        #mybb_error_error { padding: 6px; }
        #mybb_error_footer { font-size: 11px; border-top: 1px solid #ccc; padding-top: 10px; }
        #mybb_error_content dt { font-weight: bold; }
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        <h2>Wewnętrzny błąd MyBB</h2>
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        <p>MyBB napotkało błąd wewnętrzny i nie może kontynuować.</p><dl>
<dt>Typ błędu:</dt>
<dd>Ostrzeżenie (2)</dd>
<dt>Treść błędu:</dt>
<dd>Cannot modify header information - headers already sent by (output started at /home/passionr/public_html/inc/languages/polish/myshoutbox.lang.php:1)</dd>
<dt>Lokalizacja:</dt><dd>Plik: inc/plugins/myshoutbox.php<br />Linia: 599</dd>
<dt>Kod:</dt><dd><div dir="ltr"><code><span style="color: #0000BB">596.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$lang</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">load</span><span style="color: #007700">(</span><span style="color: #DD0000">"myshoutbox"</span><span style="color: #007700">);
<br /></span><span style="color: #0000BB">597.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<br />598.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;Send&nbsp;our&nbsp;headers.
<br /></span><span style="color: #0000BB">599.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;header</span><span style="color: #007700">(</span><span style="color: #DD0000">"Content-type:&nbsp;text/html;&nbsp;charset={$charset}"</span><span style="color: #007700">);
<br /></span><span style="color: #0000BB">600.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<br />601.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">switch&nbsp;(</span><span style="color: #0000BB">$mybb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">input</span><span style="color: #007700">[</span><span style="color: #DD0000">'action'</span><span style="color: #007700">])
<br /></span><span style="color: #0000BB">602.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">{&nbsp;<br /></span></code></div></dd>
<dt>Fragment kodu:</dt><dd><table style="width: 100%; margin: 10px 0; border: 1px solid #aaa; border-collapse: collapse; border-bottom: 0;" cellspacing="0" cellpadding="0" border="0">
<thead><tr>
<th style="border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;">Plik</th>
<th style="border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;">Linia</th>
<th style="border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;">Funkcja</th>
</tr></thead>
<tbody>
<tr>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">/inc/class_error.php</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">206</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">errorHandler->output_error</td>
</tr>
<tr>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">[PHP]</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">&nbsp;</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">errorHandler->error</td>
</tr>
<tr>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">/inc/plugins/myshoutbox.php</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">599</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">header</td>
</tr>
<tr>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">/inc/class_plugins.php</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">101</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">myshoutbox_load</td>
</tr>
<tr>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">/xmlhttp.php</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">115</td>
<td style="font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;">pluginSystem->run_hooks</td>
</tr>
</tbody></table>
</dd>
</dl>

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