Piwigo encountered a non recoverable error

[mysql error 1040] Too many connections
Can't connect to server

#1	my_error /mnt/110/sda/c/9/pieroprod/galeries_pieroprod/include/common.inc.php(129)
#2	include_once /mnt/110/sda/c/9/pieroprod/galeries_pieroprod/index.php(26)

Fatal error: [mysql error 1040] Too many connections Can't connect to server #1 my_error /mnt/110/sda/c/9/pieroprod/galeries_pieroprod/include/common.inc.php(129) #2 include_once /mnt/110/sda/c/9/pieroprod/galeries_pieroprod/index.php(26) in /mnt/110/sda/c/9/pieroprod/galeries_pieroprod/include/functions_html.inc.php on line 418