could not run legacy post zone sub request against new zone products: failed to update user subscription: failed to apply object products: You cannot add or modify subscriptions or services until the outstanding balance is paid. You should be able to do so in your Billing page.
What is the issue you’re encountering
unable to select the plan
What steps have you taken to resolve the issue?
I have tryed a lot of steps but still showing same issue.
@trendbazar.ceo It doesn’t matter whether you’ve dues or not. The resolution for the same requires a ticket. You’ll need to follow these directions here, Billing, Plans & Subscription Questions as it is already pointed by @HenryB . The Community cannot assist with Billing, Account nor Registrar issues, you need a ticket with Support.