lost conection to my database (no replies)

I made a misstake and deleted a wampfile(?) which i thought was some kind of virus. Probably It was for the connection to Dbase and Now I cant reach my dbase. Tried both by the virtual way and via phpmyadmin
Can i update Wamp without loosing the daatabase? or what to do?
here is the errorfile
:
[17-Oct-2017 21:40:23 UTC] PHP Warning: mysqli_real_connect(): (HY000/2002): Impossible to make a connection.

in D:\wamp\www\phunderscored\wp-includes\wp-db.php on line 1548

[17-Oct-2017 21:40:23 UTC] PHP Stack trace:

[17-Oct-2017 21:40:23 UTC] PHP 1. {main}() D:\wamp\www\phunderscored\index.php:0

[17-Oct-2017 21:40:23 UTC] PHP 2. require() D:\wamp\www\phunderscored\index.php:17

[17-Oct-2017 21:40:23 UTC] PHP 3. require_once() D:\wamp\www\phunderscored\wp-blog-header.php:13

[17-Oct-2017 21:40:23 UTC] PHP 4. require_once() D:\wamp\www\phunderscored\wp-load.php:37

[17-Oct-2017 21:40:23 UTC] PHP 5. require_once() D:\wamp\www\phunderscored\wp-config.php:89

[17-Oct-2017 21:40:23 UTC] PHP 6. require_wp_db() D:\wamp\www\phunderscored\wp-settings.php:106

[17-Oct-2017 21:40:23 UTC] PHP 7. wpdb->__construct() D:\wamp\www\phunderscored\wp-includes\load.php:404

[17-Oct-2017 21:40:23 UTC] PHP 8. wpdb->db_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:658

[17-Oct-2017 21:40:23 UTC] PHP 9. mysqli_real_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:1548

[17-Oct-2017 21:40:23 UTC] PHP Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in D:\wamp\www\phunderscored\wp-includes\wp-db.php on line 1578

[17-Oct-2017 21:40:23 UTC] PHP Stack trace:

[17-Oct-2017 21:40:23 UTC] PHP 1. {main}() D:\wamp\www\phunderscored\index.php:0

[17-Oct-2017 21:40:23 UTC] PHP 2. require() D:\wamp\www\phunderscored\index.php:17

[17-Oct-2017 21:40:23 UTC] PHP 3. require_once() D:\wamp\www\phunderscored\wp-blog-header.php:13

[17-Oct-2017 21:40:23 UTC] PHP 4. require_once() D:\wamp\www\phunderscored\wp-load.php:37

[17-Oct-2017 21:40:23 UTC] PHP 5. require_once() D:\wamp\www\phunderscored\wp-config.php:89

[17-Oct-2017 21:40:23 UTC] PHP 6. require_wp_db() D:\wamp\www\phunderscored\wp-settings.php:106

[17-Oct-2017 21:40:23 UTC] PHP 7. wpdb->__construct() D:\wamp\www\phunderscored\wp-includes\load.php:404

[17-Oct-2017 21:40:23 UTC] PHP 8. wpdb->db_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:658

[17-Oct-2017 21:40:23 UTC] PHP 9. wpdb->db_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:1573

[17-Oct-2017 21:40:23 UTC] PHP 10. mysql_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:1578

[17-Oct-2017 21:40:25 UTC] PHP Warning: mysql_connect(): Det gick inte att g�ra en anslutning eftersom m�ldatorn aktivt nekade det.

in D:\wamp\www\phunderscored\wp-includes\wp-db.php on line 1578

[17-Oct-2017 21:40:25 UTC] PHP Stack trace:

[17-Oct-2017 21:40:25 UTC] PHP 1. {main}() D:\wamp\www\phunderscored\index.php:0

[17-Oct-2017 21:40:25 UTC] PHP 2. require() D:\wamp\www\phunderscored\index.php:17

[17-Oct-2017 21:40:25 UTC] PHP 3. require_once() D:\wamp\www\phunderscored\wp-blog-header.php:13

[17-Oct-2017 21:40:25 UTC] PHP 4. require_once() D:\wamp\www\phunderscored\wp-load.php:37

[17-Oct-2017 21:40:25 UTC] PHP 5. require_once() D:\wamp\www\phunderscored\wp-config.php:89

[17-Oct-2017 21:40:25 UTC] PHP 6. require_wp_db() D:\wamp\www\phunderscored\wp-settings.php:106

[17-Oct-2017 21:40:25 UTC] PHP 7. wpdb->__construct() D:\wamp\www\phunderscored\wp-includes\load.php:404

[17-Oct-2017 21:40:25 UTC] PHP 8. wpdb->db_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:658

[17-Oct-2017 21:40:25 UTC] PHP 9. wpdb->db_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:1573

[17-Oct-2017 21:40:25 UTC] PHP 10. mysql_connect() D:\wamp\www\phunderscored\wp-includes\wp-db.php:1578