Source: SecureLogin
Possible Cause: SecureLogin could not open the certificate you supplied for LDAP over SSL. Either the file doesn't exist or it is in the incorrect format.
If the certificate file specified ends in .der, SecureLogin uses Distinguished Encoding Rules (DER) format. Otherwise SecureLogin uses B64 format.
Action: Make sure that the path to the certificate is correct and that it is in DER format.