Page build failed Error Message

I got this error message from GitHub pages 'Your site is having problems building: Page build failed. ’ The error type is not specified and I’m having a hard time to find where it goes wrong by myself since im also new to GitHub. I checked the recently modified files (_config.yml, sidebar_html in _includes, about.md) but didnt see anything unusual. You can find my repository here (https://github.com/psireal9/lanyon). Thanks a lot for the reading

I can’t seem to find the specific commit where your build failed inside your repository’s history right now so I’m not really sure exactly what’s gone wrong. That said it looks like your site is building successfully again so this may have just been a temporary issue during an outage.

If it happens again please let me know and I’ll take a look at what’s going on!