Great, just my luck.

Too bad about the problem, but congrats to have entered the beautiful world of static functional programming!

@Grumpy Thanks for welcome, it's quite a different world than I am used to (I am coming from Java, JavaScript and basic Scala). I am learning tons of interesting concepts. Only downside so far is documentation - it is very hard for a beginner to live with almost no tutorials and examples. Libraries usually have only basic description of functions and data types and that's it. While JS world is so often considered subpar, documentation, examples and tutorials for most used libraries/frameworks are in most cases excellent.