Piwigo encountered a non recoverable error

[mysql error 1045] Access denied for user 'webfunginl_piwi1'@'localhost' (using password: YES)
Can't connect to server

#1	my_error /var/www/clients/client21953/web38715/web/fungi/include/common.inc.php(120)
#2	include_once /var/www/clients/client21953/web38715/web/fungi/index.php(26)