Hello ESTHER JEBA,
I see that you are facing license related error while using MATLAB.
Please note that, this issue generally indicates that the license file is served from the Network License Manager and that there is a problem with the license.dat file on the machine running the Network License Manager.
Upgrade the network license manager to the latest version available. For instructions to resolve this error, please see the link below provided by MathWorks Support Team about error -8:
- corrupt license file, or license server hostid not same as license file https://www.mathworks.com/matlabcentral/answers/100496-why-do-i-receive-license-manager-error-8;
- flexnet bug for redundant servers https://www.mathworks.com/matlabcentral/answers/103212-why-am-i-getting-a-license-manager-error-8-when-running-redundant-servers;
- bug that affected locale Turkey https://www.mathworks.com/matlabcentral/answers/357580-why-do-i-see-license-manager-error-8-when-launching-matlab-on-linux-when-my-locale-is-set-to-turkey
I hope it helps!
