I try to use the new link of my form "https://form.

I try to use the new link of my form "https://form.jotform.co/sweetamin.th/uploader" to create but it is not working, https://form.jotform.co/sweetamin.th/uploader??orderNumber=test

It only works if I use the original link https://form.jotform.co/91690256572867"

https://form.jotform.co/91690256572867?orderNumber=test

Is that normal?

I believe there is something wrong with your custom URL, since it should first include your username and then the full name of your form. 

Like this for example: https://form.jotform.com/erdems/sample-2

You can take a look at one of our guides about creating custom URL if you please.

// https://form.jotform.co/sweetamin.th/uploader // this custom URL should be switched to // https://form.jotform.com/sweetamin.th/sweetamin-customization-uploader //

And when you put the pre-populated field names in the URL, you will have this:

https://cdn.jotfor.ms/sweetamin.th/sweetamin-customization-uploader?orderNumber=TEST 

Instead of using traditional methods like putting all field names in the URL one by one, you can benefit from one of our apps that'll help you save your time: 

Generate Pre-Populated Forms

I hope this will be helpful for you.

If you need further assistance, feel free to feedback us.

Thanks.