Problems related to HMI Programming

The Siemens HMI is not accepting the admin password in runtime program. Before it was ok and was running for years. No one has changed the password. There is no mmc and backup with us. What could be the reason and possible solution

Reload the source project and it will be ok. This is caused due to an invalid login attempt… this is default 3 in the tia portal. If you have the HMI program in tia it’s easy…

if you don’t upload via pro save and downlıad again Download once again & Before downloading change the password setting