Extension is not available in Azure Pipelines even after installing from Market place

[ashishrajsrivastava]

I have already installed Psake marketplace extension for my organization in Azure DevOps services but i am still not able to add the task from build definition. When i am searching with name Psake, it does show up the extension and installed button is grayed out since i have already installed it but it won't give me any option to add any task, it does not appear in build section of task either.