If you enter in a number on the team lookup page, and then hold backspace to remove the number, the following error notification is shown: "Error fetching team ranking: null check operator used on a null value." This does not crash the app.
If you switch the team tag to say, scoring rate, the error becomes "Error fetching Scoring Rate (Fuel / Second): null check operator used on a null value."
The error only appears if there was a team number in the entry box, and then backspace was held, removing all of the characters, and then continuing to be held when there are no symbols in the textbox.
Bug discovered on Samsung Galaxy A54.