Fatal error: Uncaught Itx\PublicException: Unable to connect to database in /var/www/html/itx/php/database/dbconnection.inc.php on line 115

Itx\PublicException: Unable to connect to database in /var/www/html/itx/php/database/dbconnection.inc.php on line 115

Call Stack:
    0.0001     359576   1. {main}() /var/www/html/tienda/site/index.php:0
    0.0011     359992   2. require_once('/var/www/html/tienda/site/__init__.php') /var/www/html/tienda/site/index.php:2
    0.0399     682384   3. Itx\Database->open_() /var/www/html/tienda/site/__init__.php:32