You have revoked your certificate, so it is no longer valid

I have had a developer account that had expired a year a ago, I am trying to test an application via sideloading into my iPhone, every time I try to side- load I get an email from apple like so;

You have revoked your certificate, so it is no longer valid.

Certificate: Development Team Name: Taiseer Ashouri 

Any provisioning profiles that include this certificate are no longer valid and must be regenerated for future use. 

Best regards,  Apple Developer Program Support

I have asked apple to delete my developer account, they say the did,,,,

Any help

You have revoked your certificate, so it is no longer valid
 
 
Q