Distributed deployment exceptions

I get exception message: “I/O Error on distributed channel clientId=4 reqType=120”
java.lang.IllegalArgumentException: Task with code 40 is not supported
at com.orientechnologies.orient.server.distributed.impl.task.ODefaultRemoteTaskFactoryV1.createTask(ODefaultRemoteTaskFactoryV1.java:136)
at com.orientechnologies.orient.server.distributed.ODistributedRequest.fromStream(ODistributedRequest.java:118)
at com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.executeDistributedRequest(ONetworkProtocolBinary.java:562)
at com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.distributedRequest(ONetworkProtocolBinary.java:422)
at com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.execute(ONetworkProtocolBinary.java:209)
at com.orientechnologies.common.thread.OSoftThread.run(OSoftThread.java:69)