problemas con reconocer licencia

funciono bien hasta que instale un toolbox, de ahi se cerrò y no me reconoce la licencia (uso estudiantial) que antes si era vàlida.

[Walter Roberson]

Approximate translation:

It worked fine until I installed a toolbox, from then on it closed and does not recognize my license (student use) that was previously valid.

Answer 1

[Image Analyst]

Do exactly what it says to do in the FAQ: https://matlab.fandom.com/wiki/FAQ#After_installation,_MATLAB_crashes_or_gives_an_error_message_when_I_try_to_run_MATLAB.