If you are having trouble recovering your Facebook account password, there could be several reasons for it. Here are some possible reasons and solutions:

Incorrect email or phone number: Make sure that you are using the correct email or phone number associated with your Facebook account. Double-check to ensure that you haven't made a typo or mistake.

Forgotten email or phone number: If you have forgotten the email or phone number associated with your Facebook account, try using an alternative email or phone number that you may have used to sign up.

Security check issues: Facebook may require you to complete a security check to ensure that you are the owner of the account. Make sure to follow the instructions carefully and provide accurate information.

Account recovery is disabled: If your account recovery is disabled, you may not be able to reset your password. In this case, you can try contacting Facebook support for assistance.

Hacked account: If your account has been hacked or compromised, the hacker may have changed your password. In this case, you should report the issue to Facebook and follow their instructions for recovering your account.

Overall, if you are still having trouble recovering your Facebook account password, it's best to contact Facebook support for further assistance.