KNIME is throwing error

I have installed the latest 5.2.2 version of KNIME and I am using the classic view.
When I am trying to view the data explorer result I am getting the following error, none of the nodes are running except the IO nodes. And sometimes the UI is unresponsive, please help.

Hi @rikab and welcome to the forum.

I quickly checked the Data Explorer node in my installation of Windows and wasn’t able to reproduce the problem. Could you possibly upload a workflow here that reproduces it?

Also, can you clarify what operating system you’re using?