Failed to generate Critical CSS

Hello,

I have a blog. mlghikes.com I use Bluehost and WordPress, and the free version of Jetpack boost.

For some reason whenever I try to regenerate my critical CSS I receive the following error.

Failed to generate Critical CSS

An unexpected error has occurred. As this error may be temporary, please try and refresh the Critical CSS.

Error: Cannot read properties of undefined (reading ‘1’)

this has only started happening in the past few weeks. I have had my blog for years and I have zero clue on what could’ve happened to cause this.

Any help would be appreciated.

The page I need help with: [log in to see the link]