You must import your backup there.
Backup, which is your key is encrypted by that password.
Click options icon, then:
Switch to advanced mode if you're using Openledger.
Or click restore from backup on the welcome page.
At bitshares.org/wallet chose wallet model -> restore from backup
Please watch to understand the logic behind:
https://www.youtube.com/watch?v=b2_C1I7eKM8from 2:45 is what you need to do, however GUI looks different now.