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Troubleshooting for error Code: BLZBNTBGS0000020A
What to do if you can't open the Battle.net desktop app, and there are no error messages when you try.
Troubleshooting steps for this error in Diablo III
Your login session has expired. Please log in again.
How to obtain error logs for Blizzard games
Updated: 10 months ago
Article
Troubleshooting steps when you can log into your account management page but not the Battle.net App
A disk error occurred while loading a file required to log in.
Blizzard Customer Support cannot lock your account on request