When I use a deep link to add an app block to the classic account template customers/order, an error occurs: “xxxxx not added. There is a problem with the app block. Contact the app developer.” As shown in the image below:

And my deep link looks like this:
https://admin.shopify.com/store/xxxxx/themes/current/editor?template=customers/order&addAppBlockId=xxxxx/xxxxx&target=newAppsSection
Please help me resolve this issue. Thank you. ![]()