UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Steps to reproduce the problem:
Aparently, there were no particular steps that triggered the issue

What is the expected behavior?
chrome.storage.sync.get would retrieve stored data

What went wrong?
A user of my extension reported that features related to sync stored stopped working. I asked her to run the following javascript snippet on the console of a page presented by the extension: 
chrome.storage.sync.get((r) => console.log(JSON.stringify(r)));

The response in the console was Unchecked runtime.lastError while running storage.get: Corruption: block checksum mismatch

A screenshot of the error is attached

WebStore page: https://chrome.google.com/webstore/detail/podstation-podcast-player/bpcagekijmfcocgjlnnhpdogbplajjfn

Did this work before? Yes 

Chrome version: 67.0.3396.87  Channel: stable
OS Version: 10.0
Flash Version: 

I'm the developer of the extension, I looked for similar errors online but could not find any reference.
It does not look like it is related to misuse of the storage API.
 

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