E-Notebook Enterprise: E-Notebook User gets the an error in Reaction sections

An E-Notebook User gets the following error in Reaction sections in E-Notebook:

E-Notebook

Sorry, class not registered(....HResult: 0*80040154 (REGDB_E_CLASSNOTREG) OK ----

Applicable version: E-Notebook 13.9.x

Uninstalling and reinstalling the E-NoteBook client along with Chemdraw Activex using ClickOnce should fix the issue.

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