internal error (500) in list resource after import

import samples/resources/opendj/opendj-localhost-basic.xml, open:

• list resources --> 500 + java.lang.IllegalStateException: Unencrypted value in field {http://midpoint.evolveum.com/xml/ns/public/connector/icf-1/bundle/com.evolveum.polygon.connector-ldap/com.evolveum.polygon.connector.ldap.LdapConnector}

  bindPassword in resource:7a9c674e-81a1-47c4-bf5e-7ccd72b01627(Basic Localhost OpenDJ)
  at com.evolveum.midpoint.common.crypto.CryptoUtil.checkEncrypted(CryptoUtil.java:167)

• or debug pages --> resources --> open Basic Localhost OpenDJ --> Couldn't load object.