Hi there
Please find the theme file for version 4.15 here:
https://drive.google.com/drive/folders/1qJrG-cnsnMmnlcdkCwSlLhnaX2byPBzL?usp=sharing
You will need to add the theme yourself.
The database is too large for us to restore the website again.
To our knowledge, the website was working when it had this version of the parent plugin.
Is there another way to contact you guys other than this forum? I feel we are going through a lot of back and forth here.