Notebooks taking too long to execute, kernel error.

https://learninghub.kx.com/forums/topic/notebooks-taking-too-long-to-execute-kernel-error

The cells in the notebooks are taking a little too long to execute, not completing even after minutes of waiting. 


In addition, the error  "Error Starting Kernel. Too many open files" keeps popping up even when I have no more than one file open in the workspace.


Thanks.