Why workspace is not generated, and blank plot?

With respect,

Sir, I have a program and run in HP-Z820 workstation, I have got results in command window, with an error " Caught unexpected exception of unknown type." Workspace is also not generated, and blank plot I got. I am attaching here photo of results.

Please give me suggestion about this.

[Walter Roberson]

If you step through the code, then which line is triggering the exception?

[KALYAN ACHARJYA]

Or Restart Matlab,is this showing again?

[Walter Roberson]

See https://www.mathworks.com/matlabcentral/answers/36306-rare-examples-of-confusing-error-messages#answer_45515