Search button doesn't work

[michelmetran]

I like and use minimal mistakes for some projects!
But I noticed that in some sites that I've done, using the minimal-mistakes, the search button stops working.

Here's an example where the button stopped working.
I hardly added anything/edited anything after cloning the repository...

• https://open-dsa.github.io/

I don't know why it happens or where to start looking for solutions.
There is no error message... no clue...
Do you know where I should search to find a solution and get search working again?

[michelmetran]

I found the error.
I had created an _includes folder that didn't have all the necessary content