How can I add more than three product variations on a car auction site?

[developerpd233]

Hi, I need a help you.
Please give me solution of this.
Actually I am designing a car auction website I am facing some issue when I installed this plugin my collection page and product is not showing properly some error in shopify liquid.
How can we solve this.
And I need a little more help that I wanna create a variation more than 3 in product but shopify is not allow more than 3 variation.
So what do we do now.

I need more option like mileage, brand, color, car type, etc
how can we add more option for show variation on collection page like that