I solved this problem. Log in to https://ankiweb.net/shared/addons, enter "image occlusion" in the search field, and choose "Image Occlusion Enhanced." At the bottom of the page, you will find the code to download the add-on: 1374772155. You can copy it from there.
Next, open your application on the computer, go to Tools->Add-on. Click "Get Add-ons" and paste the code there.
After installing the add-on, when adding image occlusion, you will have an additional button in the tool section, the last one at the end. Using this, image occlusion will work on your phone.
I recommend turning off and on your phone before using it.
More information can be found here: https://ankiweb.net/shared/info/1374772155