One possible reason your account is logging out is that if you log in to WordHero from another device, it will log out the existing session.
Password managers can also cause unexpected issues. Try disabling it and see if it fixes the problem.
If this is not the case, it could be possible your account could have been compromised. Please change your password to a stronger one (click on the circle icon on the top right > Profile > Change Password).
If you have further questions, contact firstname.lastname@example.org, and we will be happy to help you.