encry.network.EncryDeliveryTracker Unexpected error during node synchronization

[oskin1]

[WARN ] encry.network.EncryDeliveryTracker >> 15:11:33.995 Unexpected error
java.util.NoSuchElementException: key not found: (WrappedArray(0, 0, 71, 71, -89, -48, 50, -115, 71, -116, -45, 15, -47, -51, -114, -86, 109, 6, -104, -97, 44, -18, 113, 106, 82, -99, 104, -111, 9, -62, -67, 42),ConnectedPeer(94.130.154.155/94.130.154.155:9001))
at scala.collection.MapLike.default(MapLike.scala:232)
at scala.collection.MapLike.default$(MapLike.scala:231)
at scala.collection.AbstractMap.default(Map.scala:59)
at scala.collection.mutable.HashMap.apply(HashMap.scala:65)
at scorex.core.network.DeliveryTracker.stopExpecting(DeliveryTracker.scala:65)
at scorex.core.network.DeliveryTracker.$anonfun$reexpect$1(DeliveryTracker.scala:54)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12