I haven't seen that error message before.
Does it happen on only one machine, or does the same error appear on different machines?
It gives the same error with different machine also, I wonder there could be any issue with the setup ?
Please let me know your feedback.
Sometimes, errors of this nature are a result of unsupported operating system or patch levels. You can check to see if your operating system is supported for the Calibre version you are using, with the information at this link regarding system requirements: