This is a known AliExpress error specific to their site. For example, if you try to place the order manually outside of Dropified you will notice the same error.

To correct this you can delete the cookies off the AliExpress site itself. (different than cookies in Chrome)

Here is an instructional video, which can help.

https://www.loom.com/share/39ca23de7dce44f4846c062f0a75f4b9

You can also try reaching out to the seller and to AliExpress for support.

Did this answer your question?