Has Elementor got you stumpped?
A recent update with WordPress 5.5 caused the pagination in the post widget in elementor to break.
URLS are displaying /2/ instead of /page/2/
A quick solution is to use Javascript to add the /page into the url.
Use the html widget
On the page where the problem is occuring, use the html widget.
Copy and paste the following code
<script>
jQuery(document).ready(function(){ 
    
   jQuery('a.page-numbers').each(function(index) { 
    
   var oldUrl = jQuery(this).attr('href'); 
  // alert("test: "+oldUrl);
   var patt = /\/[0-9]\//;
   var result = oldUrl.match(patt);
   var result2 = '/page' +result;
   
   url = oldUrl.replace(result, result2);
    jQuery(this).attr('href', url); }); 
    
});
</script>
How to debug
If you run into any problems, uncomment the line (remove the double forward slashes).
  // alert("test: "+oldUrl);
You can replace the +oldUrl variable with other variables to see what results appear.
Other solutions
You can find more solutions on github
