query error in Guestbook

hey i put the guestbook script in my page, so, it worked good for the first days then i got this error:

Query Error
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MySQL Error : Query Error
Error Number: 1030 Got error 28 from table handler
Date : Sun, May 9, 2004 06:52:59
IP : 200.64.231.249
Browser : Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; DigExt)
Referer : http://www.mypage.com/
PHP Version : 4.3.5
OS : Linux
Server : Apache/1.3.29 (Unix) mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 PHP/4.3.5 FrontPage/5.0.2.2634 mod_ssl/2.8.16 OpenSSL/0.9.7a
Server Name : www.mypage.com

what can be wrong ?

also i got this error:

Warning: mysql_connect(): Too many connections in /home/stadiosk/public_html/guestbook/lib/mysql.class.php on line 30
Connection Error
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MySQL Error : Connection Error
Error Number: 1040 Too many connections
Date : Mon, May 10, 2004 23:15:36
IP : 200.64.231.160
Browser : Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; DigExt)
Referer : http://www.mypage.com/entrada.php
PHP Version : 4.3.5
OS : Linux
Server : Apache/1.3.29 (Unix) mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 PHP/4.3.5 FrontPage/5.0.2.2634 mod_ssl/2.8.16 OpenSSL/0.9.7a
Server Name : www.mypage.com