Step 1: If there are other errors on the page, deal with them first.
Step 2: After fixing all other errors, clear your cache.
Step 3: Reload or refresh the webpage you are running the PGAI on.
Step 4: Try upgrading your HB version. Open your HB config and set version to latest stable.
Step 5: If the error persists, please report this to our support team with this notification title in the subject line and they’ll help you troubleshoot the issue.