George Ion Dulica Greetings!
{"error":{"code":"DisallowedProvider","message":"The operation is not permitted for namespace 'Microsoft.Devices'. List of permitted provider namespaces is 'Microsoft.Authorization,Microsoft.Billing,Microsoft.Education,Microsoft.Features,microsoft.insights,Microsoft.NotificationHubs,Microsoft.Resources,Microsoft.Sql,Microsoft.Subscription,microsoft.support,microsoft.visualstudio,Microsoft.Web'."}}
You are trying to create an IoT Hub using a namespace that is not permitted for your subscription. According to the error message, your subscription only allows the following provider namespaces: 'Microsoft.Authorization,Microsoft.Billing,Microsoft.Education,Microsoft.Features,microsoft.insights,Microsoft.NotificationHubs,Microsoft.Resources,Microsoft.Sql,Microsoft.Subscription,microsoft.support,microsoft.visualstudio,Microsoft.Web'.
To create an IoT Hub, you need to use a permitted provider namespace. Resource providers for Azure services
I would suggest you, please see Microsoft Azure for Students Starter Offer for more details on available resources.
Also, check the troubleshooting guide to Resolve errors for resource provider registration
Do let me know if that helps or have any further queries.