@Tioneb22,
The original topic was related to an issue with new installs on Mac computers at the end of July… the issue was reported by several users, Blizzard investigated and solved the issue and this topic has been marked as solved.
Posting here is probably futile and may even be considered as an attempt to hijack the topic… don’t.
Start a new topic or contact Blizzard Support directly (the Support button in the top right corner of the screen, just beside your Name).
Error 1021 is typically a connection problem; see the pinned topic at the top of the forum: