Failed to join meeting on laptop and another smartphone.. only 1 device can run the meeting

Hello @Lii ,

 Please make sure that your host email address associated with your Zoom account is not already hosting another meeting while you are trying to launch a separate meeting. Here is a support article about using host controls. 

https://support.zoom.us/hc/en-us/articles/201362603-Host-and-co-host-controls-in-a-meeting

Regards,

B!