Demo doesn't run

[SvdSinner]

Demo fails with the following exception:
System.InvalidOperationException: Can't migrate database after 1 tries. See previous errors
at Sitko.Core.Db.Postgres.PostgresDatabaseModule1.InitAsync(IApplicationContext context, IServiceProvider serviceProvider) at Sitko.Core.App.Application.InitAsync(IServiceProvider serviceProvider) at Sitko.Core.App.HostedApplication.GetOrCreateHostAsync(Action1 configure)
at Sitko.Core.App.HostedApplication.BuildAppContextAsync()
at Sitko.Core.App.Application.RunAsync()
at Sitko.Blockly.Demo.Program.Main(String[] args) in C:\Projects\Git\Sitko.Blockly\apps\Sitko.Blockly.Demo\Program.cs:line 8

I would assume the demo requires some prerequisites that I don't have on my machine. Instructions on how to run the demo would be beneficial.