Tour Booking Variation Price

Hello,

I have created variation for tours pricing but I am facing a problem. Its that I cannot put the regular price of the tour to 0 otherwise it does not show my variations pricing. Can you please check why is that?
https://rac.com.pk/tours/skardu-deosai-national-park-2/

as you can see I have to put at least 1 value and it changes whole costing of the tour and when I put 0 then it doesn’t show any pricing
https://rac.com.pk/tours/skardu-shigar-khaplu-tour-3/

Please I need to remove this value “1” of regular price thing from my tour and also the number of tickets thing as well and I am unable to remove this 1 price thing without losing my variations pricing as well. It is changing the complete costing of all my tours. Please let me know how to fix it.

https://rac.com.pk/tour-category/group-tours/

How to correct this thing? Also the price bar is stuck on the screen sometimes.