Application errors occurring after licenses have expired
You are using an Internet Creations AppExchange application, and are noticing errors in the Salesforce user interface/email processing following the expiration of the application's license.
When a managed package license expires, the following behaviors will apply:
If your license has expired is about to expire and you're not planning to purchase/renew the application, we recommend that any local automation which references the managed package component either be adjusted or deactivated, and the managed package be uninstalled. For additional guidance, please refer to the following knowledge article.