I have been using the Teams free app for a while now. But since yesterday, I can no longer connect to my account with the application. I can log into my account on the Teams website, but not with the app. Indeed, when I use the Teams application (for Mac) on my computer, as soon as I give the address of my account, the application crashes, (...) without even asking me for my password. However, the Teams app for my iPhone works very well. I updated the OS system of my mac, then I eliminated and reinstalled the Teams application (at least 10 attempts), without result. The application always hangs, no matter which account I use. What can I do?