I keep getting the following messages:
mysql_real_escape_string() [function.mysql-real-escape-string]: Access denied for user 'www-data'@'localhost' (using password: NO)....
and
mysql_real_escape_string() [function.mysql-real-escape-string]: A link to the server could not be established in...
as well as
mysqli_set_charset() expects parameter 1 to be mysqli, resource given in...
Can anybody help me? I´m really lost.
https://wordpress.org/plugins/contact-form-7-to-database-extension/