To be sure that it isn't the cause of the problem please disable this plugin. You can also try to download Wow client in another website (to be sure that it is not modified).
Hello,
You use modified wow client? You have try to disable wow addons and wrobot plugins? To disable your antivirus? Check if required softwares are installed?
Hello,
Disable all Wow addons, all WRobot plugins and share your log file please ( https://wrobot.eu/forums/topic/1779-how-to-post-your-log-file-with-your-topic/ ).
Hi, I have verified, 3D secure is supported by Stripe. Try to contact your bank or Stripe. I will add you a key with a few days of subscription until the problem is solved.