If you are experiencing sporadic crashes with Teams please follow these steps which should resolve the issue:
1. From the task bar right click on the power icon and choose "Power Options".
2. Next click on "Change plan settings"
3. Next click on "Change advanced power settings"
4. Next expand processor power management -> Maximum processor state node, change both "On battery" and "Plugged in" options to 99%, then click OK to dismiss
5. Reboot your machine