Please follow the steps below to troubleshoot and find the reason why the order cannot be placed.
Firstly, please check if your country is on the banned list. Below is the FAQ about the banned list for your reference.
Secondly, if your country is not on the banned list, please help to confirm whether you have chosen the correct online store to place the order. Users need to select the store to place the order according to the destination country. If the store is selected incorrectly, it will show that the order can not be placed. You can click the button "Switch Store" at the bottom of the Online store to switch to the correct online store.
Thirdly, if your shipping address belongs to the non-EU/US region, you need to select the region of "Ship to" according to the shipping country.
Finally, if you still fail to place the order after troubleshooting, please share the screenshot of the checkout page and shipping country with email@example.com so that our Customer Service Team can assist you to solve it.