Running into issues like
Attempt to create a field storage [...] with no type
when migrating from Drupal 6 or Drupal 7 to Drupal 8+?
Then you're propably missing a migration for a custom field type used in your project.
If it's your job to implement such a Field Type Migration, you're in the same situation in ran into.
So to save your time, here are the docs:
And this is a good example from the Drupal color_field module:
Or a bit more complex one from geolocation:
That should help you to get started :)