Hello @Suleiman
Try these below suggestions to log in to your MATLAB Online account:
1) Double check your credentials. Note that passwords are case sensitive. If you're using a password manager, it is possible that you've accidentally saved incorrect credentials. Try manually typing them instead of auto-filling.
2) Reset your password. Go to MATLAB Online login page and follow the instructions after clicking the "Forgot Password?" link.
3) Clear browser cache and cookies. Try temporarily disabling browser extensions.
4) Try a different browser. Also try logging in by using Incognito/Private mode.
5) If none of the above steps work, contact MathWorks Technical Support here: https://www.mathworks.com/support/contact_us.html
