Clarification Needed

"You did not enter the correct format for the Type the word s t r a i g h t without the spaces. field. Please read the field description for the expected format."

What does that mean and how do I fix it?

Oh, yes, when I change to hybrid mode and click save, it keeps switching back to linear on its own.

Never mind. I thought I was done and, when skipping down to “save”, I failed to notice the spam bot test. :o