@azure admin Thanks for the question. Can you please add more details about the steps that you performed. Did you submit an online request, and receive approval.
Please follow the document for Request approval to run container below for more information. Currently it supports the following Host Computers.
https://learn.microsoft.com/en-us/azure/cognitive-services/form-recognizer/containers/form-recognizer-container-install-run?tabs=layout#host-computer-requirements