expo developer tools is disconnected from expo cli. use the expo start command to start the cli again.
By Kim Hilll at Oct 24 2020
0
yarn : File C:\Users\Developer Daiyan\AppData\Roaming\npm\yarn.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.