The Sims 4: Errors on The Forever Friends Event

Are there any errors in this event?

I have finished all the challenges (except the challenges with pack-specific - optional for player to complete or not), but the last four rewards could not be unlocked...and at the challenges page, it said that the current event was ended and could not be looked back what each challenge I have completed. The pack-specific challenges are not required to complete an event?!

How to fix it as this event would be ended on 5 November 2025?