why no one can log on to me
Hello @IC_COLD,
Thank you for reaching out to us and welcome to the community! 🙂
TeamViewer version 9 reached it's End-of-Life this year on 15th of September. You can find more details about it below:
Since you're using Mac OS X Lion, you should be able to update your TeamViewer application to TeamViewer version 11. You can find all our supported macOS systems below:
💡 Keep in mind, that you or your partner on the remote site needs to have a license for TeamViewer version 11. You do also need to manually update, as you're not able to connect to the device and remotely update it.
If you have any further questions. Please let me know.
I hope I was able to help you out.
Best,
Justin