Downloading and installing the latest version of SpamButcher should remedy this error. Updates to SpamButcher are always free.

If the problem continues, please contact support@spambutcher.com.

This is a known problem with third-party applications removing one of SpamButcher's components. The error usually occurs when attempting to restore a message. It may also happen spontaneously when SpamButcher attempts to send a report of blocked spam.

Newer versions of SpamButcher attempt to pro-actively detect the problem and reinstall the effected component without requiring user intervention.