@korina
Problem solved
Your SSL certificate (Let's Encrypt R3 intermediate CA ) expired on 30 sep 2021 but the raspberry pi running cumulusmx still use it, so the solution was to disable the ca-certificate.
@Phil-BTZ
For each layer, you can click on the clock in the low right corner. You get the information about the data including the provider, the update interval, the resolution and the last and the next update.
2B1B5FA9-7C7B-4ACD-BB0B-A627E10C0494.jpeg
The Active fires layer is not the only one that is not in « real time »