Troubleshooting "Not Available While Initializing Game Mode" error in Starcraft II and Heroes of the Storm

Troubleshooting for error "Too many attempts" when trying to log in to the Blizzard website

Troubleshooting steps to resolve the error "Heads up! Something Went Wrong. Select another payment method or try again later."

Error Code: BLZBNTAGT00001398

Troubleshooting for Battle.net desktop application crashes.

Classic StarCraft is free to play and does not require any activation code

Information on error BLZHSBGS8000000B

Information on error BLZBNTBNA00001451.

Information on error BLZBNTBGS00002AFF

Information on error BLZBNTBGS8000000B