Piwigo encountered a non recoverable error

[mysql error 1044] Access denied for user 'sql8991625'@'%' to database '4730962db3'
Access denied for user 'sql8991625'@'%' to database '4730962db3'

#1	my_error /home/.sites/592/site4730962/web/Fotogalerie/include/common.inc.php(118)
#2	include_once /home/.sites/592/site4730962/web/Fotogalerie/index.php(11)