There's a problem with the connection to the Blizzard servers.

What to do when you get an Internal Error attempting to access the Shop

What to do if you receive "Internal Error" when you claim a Character Boost

Troubleshooting steps for payment error: Sorry, we're unable to complete your payment.

Questions about the Blizzard Internship program

Information on this error when looting items received from fishing

Troubleshooting steps for the BLZBNTGFT00000001 error.

How to resolve an Internal Mail Error when looting mail.

Information on the BLZBNTGFT00000117 error

What to do if you can't open the Artisan's Satchel in your inventory.