Offline message retrieval has been slightly changed to use different methods. If you are using the below configuration:
sess-man/plugins-conf/http\://jabber.org/protocol/offline/amp-repo-class=tigase.archive.unified.db.JDBCFlexibleOfflineMessageRetrievalRepository sess-man/plugins-conf/amp/amp-repo-class=tigase.archive.unified.db.JDBCFlexibleOfflineMessageRetrievalRepository
Replace it with these settings to use proper retrieval method.
sess-man/plugins-conf/http\://jabber.org/protocol/offline/amp-repo-class=tigase.archive.unified.db.JDBCFlexibleOfflineMessageRetrievalRepositoryWithRecents sess-man/plugins-conf/amp/amp-repo-class=tigase.archive.unified.db.JDBCFlexibleOfflineMessageRetrievalRepositoryWithRecents