Error while updating from version 2x to 3x.

When I'm updating my store i'm getting this.

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data OK Notice: Constant DB_DRIVER already defined in G:\xampp\htdocs\newsaudioutlet\install\controller\startup\database.php(9) : eval()'d code on line 1Notice: Constant DB_HOSTNAME already defined in G:\xampp\htdocs\newsaudioutlet\install\controller\startup\database.php(9) : eval()'d code on line 1Notice: Constant DB_USERNAME already defined in G:\xampp\htdocs\newsaudioutlet\install\controller\startup\database.php(9) : eval()'d code on line 1Notice: Constant DB_PASSWORD already defined in G:\xampp\htdocs\newsaudioutlet\install\controller\startup\database.php(9) : eval()'d code on line 1Notice: Constant DB_DATABASE already defined in G:\xampp\htdocs\newsaudioutlet\install\controller\startup\database.php(9) : eval()'d code on line 1Notice: Constant DB_PORT already defined in G:\xampp\htdocs\newsaudioutlet\install\controller\startup\database.php(9) : eval()'d code on line 1Notice: Constant DB_PREFIX already defined in G:\xampp\htdocs\newsaudioutlet\install\controller\startup\database.php(9) : eval()'d code on line 1{"success":"Patch 1000 has been applied (1 of 10)","next":"index.php?route=upgrade\/upgrade\/next&step=2"}

And 3x version is???