I am getting :

aws:ecr:Repository (abc-staging_trial_Mayuresh):
    error: 1 error occurred:
    	* failed creating ECR Repository (abc-staging_trial_Mayuresh-f8a8c04): InvalidParameterException: Invalid parameter at 'repositoryName' failed to satisfy constraint: 'must satisfy regular expression '(?:[a-z0-9]+(?:[._-][a-z0-9]+)*/)*[a-z0-9]+(?:[._-][a-z0-9]+)*''

when trying to create an AWS ECR repo... apparently

abc-staging_trial

was working fine, till yesterday