It could be locked from the passwords being leaked in 2015. You will need to follow the
directions in this thread:
https://bitcointalk.org/index.php?topic=497545.0You'll need to search for the name of the account in the search feature, and look through
"last posts of this person" to find a posted BTC/CRYPTO address. You will need it to verify
ownership of the account. If you need help signing a message read this:
https://bitcointalk.org/index.php?topic=990345.0Goodluck!!!