Discussione: errori via email. cosa è successo?

mi è preso un colpo secco al cuore. guardate cosa mi è arrivato via email per tre volte consecutive:

EMAIL 1:
Database error in vBulletin :

mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: Too many connections /gsmartm1/gsmart.assistenza/home/forum/includes/class_core.php on line 274

MySQL Error :
Error Number :
Date : Sunday, September 16th 2007 @ 06:57:23 PM
Script : https://gsmart/forum/index.php
Referrer :
IP Address : 151.41.182.104
Username :
Classname : vb_database
-------------------------------------------------------------
Email 2
Database error in vBulletin 3.6.8:

Invalid SQL:

SELECT thread.threadid, lastpost, open
FROM thread AS thread
WHERE forumid = 6
AND sticky = 1
AND visible = 1;

MySQL Error : Lost connection to MySQL server during query Error Number : 2013
Date : Sunday, September 16th 2007 @ 06:56:49 PM
Script : https://gsmart/forum/forumdisplay.php?f=11
Referrer :
IP Address : 74.6.23.155
Username : Non registrato
Classname : vb_database
------------------------------------------------------------------------
EMAIL 3

Database error in vBulletin 3.6.8:

Invalid SQL:

SELECT *
FROM style
WHERE (styleid = 5 AND userselect = 1)
OR styleid = 5
ORDER BY styleid ASC
LIMIT 1;

MySQL Error : Lost connection to MySQL server during query Error Number : 2013
Date : Sunday, September 16th 2007 @ 06:54:34 PM
Script : https://gsmart/forum/search.php?do=finduser&u=86
Referrer :
IP Address : 82.63.99.14
Username : Non registrato
Classname : vb_database

vi prego, ditemi se è successo qualcosa di grave e se devo risolvere qualcosa.

P.S. i link non funzioneranno in quanto il forum sta in una intranet ad accesso privato