"Error Loading: Exception has been thrown by the target of an invocation" when trying to view a Reaction within ELN

"Error Loading: Exception has been thrown by the target of an invocation" when trying to view a Reaction within ELN

This is caused by a missing piece of software, please install the Chemdraw ActiveX Constant provided with the installers.

If this error showed up after installing a patch please try to use the latest version of this Constant (included with the installers too), just uninstall the old version and install the new one.