price and gallery bugs with china DS

hi, I have made a screen recording which can be accessed below regarding the bugs i am facing.
https://vimeo.com/838403237/fabf9f2a11?share=copy

1.) my wordpress site keeps saying something went wrong when i load a listing?
2.) the listings do not have a gallery of pictures anymore which match with the colour options of my products.
3. the price settings i want to apply as the following:

0 – 500 YUAN – X 5 THE PRICE
501 – 1000 – X 3.5 THE PRICE
1001- – X3 THE PRICE

i have tried to do this, can someone help me understand what to input.

thank you.