[READ] Unable to connect to MySQL server ( AND WORKS?)

[Glas]

This user has been denied support.

yep, suddently, i started to get this error...
and most funny thing is that the forum works fine D:
How can i debug it to get more information?

Your copy of MyBB running on beatDJ.net (http://www.beatdj.net/foros) has experienced an error. Details of the error include:
---
Type: 20
File:  (Line no. 0)
Message
- Ocultar texto citado -
SQL Error: 0 -
Query: [READ] Unable to connect to MySQL serve

---

what's the name of that zone?

i checked postbit classic

	<td class="{$altbg}" style="white-space: nowrap; text-align: center; vertical-align: middle;"><span class="smalltext">{$post['postdate']} {$post['posttime']}<br />{$post['social1']}</span></td>
	<td class="{$altbg}" style="vertical-align: middle;">
		<table width="100%" border="0" cellpadding="0" cellspacing="0">
			<tr valign="bottom">
				<td align="left" ><span class="smalltext">{$post['button_email']}{$post['button_pm']}{$post['button_www']}{$post['button_find']}</span></td>
				<td align="right">{$post['button_edit']}{$post['button_quickdelete']}{$post['button_quote']}{$post['button_multiquote']}{$post['button_report']}{$post['button_warn']}{$post['button_reply_pm']}{$post['button_replyall_pm']}{$post['button_forward_pm']}{$post['button_delete_pm']}</td>
			</tr>
		</table>
	</td>
</tr>
</table>{myadvertisements[zone_3]}

looks fine