Sometimes Salesforce does not allow to uninstall from “Installed Packages” option in administrator menu. If this is your case, you can uninstall the app directly from appexchange. Please follow these instructions:
- Go to appexchange.
- Click on Log in and use your Salesforce credentials.
- Click on your photo and select My Installs & Subscriptions.
- Find Axy OKR and select Uninstall from the menu.