This means your database name, username, or password is incorrect. It appears your database name "connectionname april 2018" is almost certainly wrong. The database name shouldn't allow spaces.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.