Search your hard drive for any remaining folders named "ShaperBox" and delete them to remove cached license data.
Although you may have a valid license, several technical factors can trigger an expiration or "invalid license" warning: shaperbox license key expired
: If you owned ShaperBox 2 and are trying to use it in a ShaperBox 3 environment, you may need an Upgrade License rather than a simple reactivation. 4. Avoiding Future Issues Search your hard drive for any remaining folders
This is the most effective fix reported by the community for resolving sudden "expired" messages. shaperbox license key expired