Exam function doesnt work

Hello Daniel(nie wiem czy umiesz polski więc pisze po angielsku)

I've installed Librusik as an alternative to Librus app for ios, everything works, apart from exams function. The app reports:

Traceback (most recent call last): File "librusik.py", line 825, in exams result = (await librus.get_exams())[::-1] File "librus.py", line 281, in get_exams leson = subjects[x["Subject"]["Id"]] KeyError: 24119

Let me know if I need to add more info, because it's my first bug report.