The database connection that your application use was not found

I was trying to deploy a test project to a hosting.

all folder permission sated to 755 and files to 644

able to connect to MySql by the deployment tool and able to create and save.

But when i try to go to the URL of app it shows below message:

"The database connection that your application use was not found. You need to access the production environment and create the connection.

Connections not found: conn_example

Click here to create the connections now."

Please advise.

Best Regards,
Ahsan

OK; Problem identified, and solved.

It was the browser cache issue only. after cleanup, all ok.