If you still see the message when you try to create a new session, try the fixes below.
It is possible they did not quit correctly and a system restart will resolve the problem. It is one of the things that can cause this message to appear. If you are seeing this message, make sure This message is a stop message which will quit the app/end the remote session after 5 minutes of it appearing. TeamViewer users sometimes get a message that the app has detected it is being used commercially.
TeamViewer commercial use detected in Windows 10
With both versions, the best remote experience comes when users log into their TeamViewer account. It has a free version that allows users to use it in a personal capacity and a commercial version that allows users to use it for work i.e., it’s meant for companies. TeamViewer is a a remote desktop solution that is available for both Windows and macOS.
