App crashes when lesson ends in home view

[Square-face]

If on the home page when a lesson ends the app crashes

To Reproduce
Steps to reproduce the behavior:

1. Go to Home
2. Wait until a lesson ends
3. See error

Expected behavior
The lesson ends and gets marked as finished and the next one gets displayed as current

Screenshots

• Device: Samsung galaxy S20+ 5G
• OS: Android13
• Version commit #45c647bdbed0a597b49d09f444178068e7645047