Using Voting API and jQuery, we create Like and Dislike buttons

I have a custom module for Drupal 7, the essence of which is as follows:
Using Voting API and jQuery, we create Like and Dislike buttons (yes, I know there is a ready-made module, but I need my own).
I followed the documentation but have the following problems:
1) An anonymous user does not see the like image (role permissions are set correctly)
2) When a dislike is added, the like count disappears
3) When a dislike is added, the dislike count remains at 0
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I can share the module source code or screenshots of the issues and code.
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I'm not wealthy, but can provide financial support.