For context and full details, please refer to the following knowledge base article:
Versions of both the combined Kaspersky and individual CGPKAV and CGPKAS plugins may contain internal keys that expire this month (June 2020).
Please Note: These keys are unrelated to your CommuniGate Pro license.
Please consult the above article, which includes links and instructions for downloading and installing updated internal keys.
If you have any questions, please open a support ticket here.