Thread:Project:Support desk/even with correct database credential I get "Sorry! This site is experiencing technical difficulties"/reply (2)

> I entered debug lines in my index.php as you advised in

The advise is to add these lines in your LocalSettings.php not in your index.php. Please do not change other files, read more about it here.

The problem itself, i support the answer of 88.130.88.87. If the database exist (and you are sure about this), make sure, that your database server is the correct one :)