Help to setup repo on Azure

[fmajurel]

Hi,
First of all, I don't have a lot of IT skills, so please forgive me if I do not use the right technical terms.
I'm trying to setup a repo on Azure, unsuccessfully until then.
I created an Azure account storage, that I called 'backrest', and a container inside, called 'backupdocker'.

In Backrest, I try to create a repo with the following information:

"id": "myfirstrepo",
"guid": "",
"uri": "azure:backupdocker",
"password": "mybackrestpassword",
"env": [
"AZURE_ACCOUNT_KEY=myazureaccountkey",
"AZURE_ACCOUNT_NAME=backrest"

When testing the configuration, I obtain the following error:

Thanks for your help!