In 'Asset Store' Search window, if after search any asset, the scene is saved and on reopening the editor with 'Search asset store' window open causing the editor to throw Error. Refer attached video.

Steps to repro:
1. Create a new project.
2. Windows > Search > Asset Store.
3. Save the scene > Quit > Reopen the project
4. Observe the console

Actual Result:
Error in fetching user purchases errors thrown in the console.

Expected Result:
No errors in the console.

Reproducible in:
2021.1.0a10, 2021.1.0a1.

Note: Quick searcher introduced in 2021.1 as a core package

Environment:
Occurring on Windows 10 & mac 10.15.

Stack trace:
Error in fetching user purchases: Failed to get access token.
UnityEngine.AsyncOperation:InvokeCompletionEvent () (at /Users/bokken/buildslave/unity/build/Runtime/Export/Scripting/AsyncOperation.cs:21)