You don’t see a colon in the file on line 57? 3A is hex format for the decimal number 58, which if you look on an ascii chart is a colon. It’s a printable character so a text editor should display it.
It’s a config file for the database though, so there should be a colon, right? All I did was change the string for the database name. If I make the same edit in Vim, it works fine, but if I use Atom or VS Code, I get that error.