This error may be received in RE:NetSolutions when deselecting the "Use Defaults" option on the Page Style page when on a Windows 7 workstation. This error may occur in both new or existing NetEvents pages for all users accessing the NetSolutions: Web Event Wizard in this operating system.
We resolved this issue in version 7.91.5056, patch 18. Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch.
To use settings other than the defaults on this NetEvents page, users may adjust these settings while on an operating system other than Windows 7.
OR leave this "Use defaults" option checked for this NetEvents page.