Recreate a default VPC within my Classic Platform

I inadvertently deleted the default VPC that was associated with my account. I tried to recreate it but the option is greyed out within the console and the "aws ec2 create-default-vpc" reports I'm not allowed to do that.

I want to use the "AWSSupport-MigrateEC2ClassicToVPC Automation" process as I'm not a systems person and I simply want to migrate before Aug 15. Could you provide me details on recreated the default VPC in order for the "automation" process listed about could go smoothly?