Error: Call to undefined method Drupal\Core\Ajax\AjaxResponse::setCommands()

I did a patch to change the method setCommands to getCommands that exists in AjaxResponse.php and it's works for me.

Hey developer-rocha, did you try adding the patches as described in the project page? Looks like you forgot to add the patch from ✨ Allow to merge AjaxCommands inside of AjaxResponse Needs work ?

Discussed this and the patch was not added. So closing this as works as designed.

The patch I created isn't solving the problem properly. We already have some solutions on this other page https://www.drupal.org/project/drupal/issues/3343670 ✨ Allow to merge AjaxCommands inside of AjaxResponse Needs work