Changes at "Error 500 after creating user. Decidim Initiatives"

**Describe the bug**

After installing decidim with decidim-initiatives as instructed app crashes when trying to register a user.

**To Reproduce**

1. Install Decidim and Decidim Initiatives 0.22

2. Register new user

**Stacktrace**

I, [2020-10-20T19:00:41.339073 gid://metadecidim/Decidim::Hashtag/230/75] INFO -- : [fbdb3b44-9283-4e89-a77a-cd1b34677f68] Completed 500 Internal Server Error in 65ms (ActiveRecord: 0.2ms)

Error during failsafe response: PG::UndefinedColumn: ERROR: column decidim_initiatives.decidim_author_type does not exist

LINE 1: ...m_initiatives\".* FROM \"decidim_initiatives\" WHERE \"decidim_i...                          ^

SELECT \"decidim_initiatives\".* FROM \"decidim_initiatives\" WHERE \"decidim_initiatives\".\"decidim_author_type\" = $1 AND \"decidim_initiatives\".\"decidim_author_id\" = $2

Anyone can help?