Unabel to use Uipath Orchestrator

Hi Team ,

I am unable to use my Uipath Studio with orchestrator - Getting the below Error
There are no available Licences.

In Orchestrator - The Licenses are allocated - It was working previously.

Welcome to the UiPath Community @kalkhalifah !

Please check if the assitant is connected to the orchestrator using machine key or interactive login.

If it is machine key, then check the robot linked to that machine key has a robot

if it is interactive login, then make sure you have the setup correctly done. the user should have the license for the studio.
Go to manage users, and select the user → Click on edit and then see in the second screen if the developer license is enabled for that user