The following bug has been logged on the website:
Bug reference: 15816
Logged by: Stefan Wolf
Email address: stefan.wolf.berlin@gmail.com
PostgreSQL version: Unsupported/Unknown
Operating system: XUbuntu 18.04
Description:
I've installed PostgreSQL 12 Beta.
Clicking on "Databases" -> "postgres" i'll get a Popup: "INTERNAL SERVER
ERROR" -> string indices must be integers