So, women's K1 should go to cause there are athletes in the World Ranking too.
There are no enough africans in the women's C1 nor in the continentals or the ranking, so the quota goes to the next in line athlete in the world rankings, WOLFFHARDT Viktoria
Wikipedia gives the Men's K1 quota to , but I don't know where it comes. Last thing I saw Tunisia, Comoros and Kenia move to semi finals but I haven't seen those results.
So, as a recap:
Men's C1:
Women's C1: reallocated to WOLFFHARDT Viktoria
Men's K1: TBD
Women's K1: reallocated to BRONKHORST Chantal