The tag `twitter` on line 86 in ... is not a recognized Liquid tag

Part 1 (2020)
1

I have a problem than I create a blog on github:

Error messsage: The tag twitter on line 86 in _posts/2020-01-14-test-markdown-post.md is not a recognized Liquid tag. For more information, see Troubleshooting Jekyll build errors for GitHub Pages sites - GitHub Docs.

Solution in this post not help me(((

Do you have any idea?

2

There must be something different about your repo vs the template that you changed. That works without error in the repo. That’s all I can tell you based on the information you provided

3

Now I have new problem:

The Unicorns have taken over. We’re doing our best to get them under control and get GitHub back up and running.