function name is asked while I want to deploy a container

Command attempted

$ scw container deploy namespace-id=c9ec0eb4-8109-4fae-8e9b-5c84903215cb
[+] Running workflow 35.0s (6/6) FINISHED                                                                                                                                                                                                                                                                                                                                 
 => Fetching namespace                                                                                                                                                                                                                                                                                                                                               0.1s
 => Fetch or create image registry                                                                                                                                                                                                                                                                                                                                   0.0s
 => Packing image                                                                                                                                                                                                                                                                                                                                                    0.0s
 => Building image                                                                                                                                                                                                                                                                                                                                                   6.3s
 => Pushing image                                                                                                                                                                                                                                                                                                                                                   28.5s 
 => ERROR Creating container                                                                                                                                                                                                                                                                                                                                         0.1s 
------                                                                                                                                                                                                                                                                                                                                                                    
 > Creating container:                                                                                                                                                                                                                                                                                                                                                    
------                                                                                                                                                                                                                                                                                                                                                                    
Task 6 "Creating container" failed: could not get or create container: scaleway-sdk-go: http error 400 Bad Request: function name must consist of lower case alphanumeric characters or '-', starts and ends with an alphanumeric character               

$ cat Dockerfile 
from ubuntu

Expected Behavior

Actual Behavior

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