The FC Mobile 26 “LOGIN FAILED — 0x00000001”.

Hello — I cannot log in. The FC Mobile 26 shows “LOGIN FAILED — 0x00000001”. I’ve tried restarting the app and device, checked my credentials, cleared cache, disabled VPN/firewall, and reinstalled the app, but the problem persists. My device: [iPhone 12 Pro], OS: [iOS], app version: [26]. Please advise. Attached: screenshot of error.