Can not log in, shows “登录失败”

[linweilin]

Describe the bug
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To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Screenshots
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Desktop (please complete the following information):

• OS:
• Vim or Neovim:
• (Neo)vim version:

Output channel:

1. Set "flutter.trace.server": "verbose"
2. Reproduce the issue
3. :CocList output open output list and select flutter

Log: