Passive Income generating zero income

Do you have the same issue if you follow the OP’s steps to reproduce it?
• Yes

Provide extra information to complete the original description of the issue:
• No Passive income

If relevant, provide additional screenshots/video:

The check-up box for maintenance often indicates that a mandatory check-up was due multiple hours ago, but the button to initiate the check-up is unresponsive. This problem is inconsistent, as some planes function normally. Additionally, passive income is not generated consistently; although the passive income screen appeared twice initially, it has not been seen since returning to the game after a few days of not playing. Furthermore, the insurance screen is missing entirely.