"Your username does not match the username in the license file" error even after activating Matlab on Ubuntu

Hello. I get this error on your software. It appears this is a recurring issue that has not been solved by your support team. Please fix it and get back to me. Thank you.

[Kevin Chng]

Advise to contact MathWorks Support https://www.mathworks.com/support/contact_us.html or your distributor to solve your problem

[Jan]

@Muhammad Sarim Mehdi: This is the public forum, where volunteers discuss about Matlab. Follow Kevin's advice to contact MathWorks directly - or search in the forum for others who have solved the same problem already.

[Muhammad Sarim Mehdi]

I have contacted Matlab support. Thank you all.

[Mengmeng Ai]

I meet the same question, I want to know how do u slove the question?