PS Script: New-Team NotFound

Hi everyone, since 3 days I can not create a TEAMS via Powershell anymore. Its the same script since 3 months at it was never a problem.
My script is:
# Team Display Name - declare Variables

$display_name = "Ayti Test 3"

$description_name = "MCCH-ORG-EXT Ayti Test 3"

$mailnick_name = "MCCH-ORG-EXTAYTITEST3"

$owner = "my Company Email Adress" 

#PS for Creation

 New-Team -DisplayName $display_name -MailNickName $mailnick_name -Description $description_name -Owner $owner -AllowCreateUpdateRemoveConnectors:$false -AllowCreateUpdateRemoveTabs:$false -AllowAddRemoveApps:$false -AllowDeleteChannels:$false -AllowGuestDeleteChannel:$false -AllowCreateUpdateChannels:$false -Visibility "private" 

The Error message since today is:
New-Team : NotFound in /v1.0/teams/ endpoint

At line:1 char:2

+  New-Team -DisplayName $display_name -MailNickName $mailnick_name -De ...

+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : NotSpecified: (:) [New-Team], HttpRequestException

    + FullyQualifiedErrorId : System.Net.Http.HttpRequestException,Microsoft.Teams.PowerShell.TeamsCmdlets.NewTeam

Like I told you above, this script worked since 3 months without any problems. Any Idea what the Problem is?

Regards
Aytac