We're sorry you are having problems running CCleaner Registry Cleaner. To help you understand what could have caused this issue we've listed them below:
Good news! We resolved this issue in Sage 50 accounts V25 and above. You can upgrade to the latest version.
If you don't want to upgrade to the latest version you'll need to follow the step for your current version below. You can find your version in Help and About.
You should refrain from using CCleaner on computers with Sage 50 Accounts and reinstall the following:
If the issue persists, install the update directly from the installation files.