Hi @Alym Karim Greetings! Welcome to Microsoft Q&A forum. Thank you for posting this question here.
The error message you notice should arise when you are trying to deploy an App service plan. There has been a recent issue identified on the platform reporting the same error. Please find the thread - The subscription is not allowed to create or update the serverfarm which has more details on the error and the work around proposed.
Please let us know if you need any additional assistance filing the support ticket.
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