If you weren't already aware, fedibash hasn't been online for a while.
Dean took it offline after a Docker vulnerability was discovered, and recently deleted the server it was running on since it was being unused.
The source code for this project is now available at https://owo.codes/dean/fedibash. Feel free to host your own copy or make bots for other platforms using the same executor backend.
If you're interested in providing a server for this copy of fedibash, let @dean know in a DM.