Quote (FrancoisG @ Nov 23 2020 05:09pm)
anyone else knows what this could be?
https://eu.battle.net/support/en/article/14165Quote
This issue can occur if you are running the game on an older operative system. Please try the following troubleshooting:
1. Update your drivers to resolve any compatibility issues.
2. Create a new administrator account to resolve permissions issues.
3. Reset Folder and File Permissions to make sure there is no conflict between the latest OS update and your permissions.
If it's none of those and running as admin doesn't help, your best bet is just to contact blizzard support in the meantime.