[BUG] Error code 1GY780K

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

<img width="1179" height="753" alt="Image" src="https://github.com/user-attachments/assets/8bcb399a-ca32-4231-bb6a-82a30cfa1dd8" />

Desktop app version - Version 1.3109.0 (35cbf6)

Operating system details for both laptops:
• ASUS Expertbook: Windows 11 25H2
• MacBook Air: macOS Tahoe Version 26.4.1

Claude keeps jumping to the error page without allowing me to use Claude at all (regardless of Claude Chat or Claude Cowork)

What Should Happen?

Behave as normal to enable Claude Chat and Claude Cowork without the error page jumping out

Error Messages/Logs

1GY780K

Steps to Reproduce

Just opening chat or cowork

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

This is a chat interface, not a terminal

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_