Error Empty Trash + Adding page

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Hi,

I notice also that i cant create new pages at the root of the sitemap.
When i create the page i can enter name and description and then as soon as i click on the Add Page button i'm redirected to the homepage of the website and nothing as been created in the Sitemap.

Also trying to empty the trash it returns me this error :
Warning: mysql_query(): Access denied for user ''@'localhost' (using password: NO) in /home/asevtravel/public_html/AMW-2017/concrete/libraries/3rdparty/Zend/Db/Adapter/Mysql.php on line 127
Warning: mysql_query(): A link to the server could not be established in /home/asevtravel/public_html/AMW-2017/concrete/libraries/3rdparty/Zend/Db/Adapter/Mysql.php on line 127
Warning: Cannot modify header information - headers already sent by (output started at /home/asevtravel/public_html/AMW-2017/concrete/libraries/3rdparty/Zend/Db/Adapter/Mysql.php:127) in /home/asevtravel/public_html/AMW-2017/concrete/core/libraries/view.php on line 657



I try to figure out from where it comes from but i have no idea.
If you can help me would be nice. I can provide connection to the dashboard details if needed.

chrismodlao