I was able to find a similar MATLAB Answers post that talks about the same error message. Here is the link to that post. https://www.mathworks.com/matlabcentral/answers/92385-why-do-i-receive-license-manager-error-83
Also if this does not help in resolving the issue you can reach out to the MathWorks Support Team. Here is the link for that. https://www.mathworks.com/support/contact_us/