I can only suspect that there is still an old version TMS WEB Core .BPL file on your system. I suggest to:
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Perform an uninstall of TMS WEB Core via Windows Control Panel Add/Remove software
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Verify after uninstall there are no more traces of TMS WEB Core in your IDE. See under Component / Install Packages there are no more TMS WEB Core packages listed
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When the IDE is clean, reinstall the latest version of TMS WEB Core.