Missing schema in fetcher_configuration

Now I'm stuck with errors, I cannot even content types that referenced to entity types that were referenced in a feed created with the fetcher from this module.

Apparently without a proper schema my past feeds were not deleted correctly, the error I get is:

RuntimeException: Adding non-existent permissions to a role is not allowed. The incorrect permissions are "clear own MY_DELETED_FEED_TYPE feeds", "create MY_DELETED_FEED_TYPE feeds", "delete own MY_DELETED_FEED_TYPE feeds", "import own MY_DELETED_FEED_TYPE feeds", "schedule_import own MY_DELETED_FEED_TYPE feeds", "update own MY_DELETED_FEED_TYPE feeds", "view MY_DELETED_FEED_TYPE feeds". in Drupal\user\Entity\Role->calculateDependencies() (line 206 of /var/www/html/web/core/modules/user/src/Entity/Role.php).

I leave this here in case it can help others:
I was able to fix the error by

1. exporting my site configuration (/admin/config/development/configuration/full/export)
2. uncompress it and search for my broken feed_type_name,
3. deleting the lines with them in the .yml files that I found,
4. importing back the single changed files (/admin/config/development/configuration/single/import)
5. after selecting the right configuration type,
6. pasting the contents of the file, in the "advanced" section setting typing the id of the entity that the file was defining,
7. importing.

I'm not a config schema expert. Feel free to test the attached file.

File is added in 1.2.0-alpha1

Automatically closed - issue fixed for 2 weeks with no activity.