If someon interested and dont want start game all over again use this info to edit save

https://strive-conquest.fandom.com/wiki/Save_Editing

And try to change her quest stage to the next one

Example: Cali heirloom quest bugged for me on stage 8

1. In save file code find

• "code": "cali_heirloom_quest",
• "stage": "stage8"

2. change "stage8" to "stage9" 

3. profit...

It worked for me. Hope it work for you as well.