Redirect non www to www using redirection plugin regex

You should try changing your WordPress Site URL from Non WWW to WWW (Eg. if your site url is http://example.com then you should edit it from Setting > General > WordPress URL to http://www.example.com I think this will solve your problem.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)