Fix AJAX Drupal?

Question

Drupal

Friends I can’t understand AJAX doesn’t work I
set Load More Views
In the view I set it to display by 8 and chose Load More
AND I set it to use AJAX = yes
And I displayed the block on the main page, but when I click Load more, it reloads the page and displays page=1 2 4 etc , that is, AJAX does not work
How to understand what the problem is? How to debug it all?
Can anyone come across?
Thank you.