OPC-DA & Rslinx Classic Lite

I had OPC-DA & Rslinx Classic Lite running for a week and it has now stopped.
Can RSlinx Classic Lite be used (possibly was in grace mode for the week) or do I have to use Rslinx Pro or Gateway and license RSLinx

Getting the following error:
com.jniwrapper.win32.com.ComException: COM object method returns error code: 0x80040112; CLASS_E_NOTLICENSED (Class is not licensed for use)

The unlicensed “Lite” version only works with Rockwell’s own products. For third party connections, you need to buy a license.

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Thank you for the swift reply