Cannot import data after Elasticsearch restart

[2017-12-14T10:09:56,920][DEBUG][o.e.a.s.TransportSearchScrollAction] [KnnPMai] [59] Failed to execute query phase
org.elasticsearch.transport.RemoteTransportException: [KnnPMai][127.0.0.1:9300][indices:data/read/search[phase/query+fetch/scroll]]
Caused by: org.elasticsearch.search.SearchContextMissingException: No search context found for id [59]
        at org.elasticsearch.search.SearchService.findContext(SearchService.java:492) ~[elasticsearch-6.0.0.jar:6.0.0]
        at org.elasticsearch.search.SearchService.executeFetchPhase(SearchService.java:428) ~[elasticsearch-6.0.0.jar:6.0.0]
        at org.elasticsearch.action.search.SearchTransportService$9.messageReceived(SearchTransportService.java:404) ~[elasticsearch-6.0.0.jar:6.0.0]
        at org.elasticsearch.action.search.SearchTransportService$9.messageReceived(SearchTransportService.java:401) ~[elasticsearch-6.0.0.jar:6.0.0]
        at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:66) ~[elasticsearch-6.0.0.jar:6.0.0]
        at org.elasticsearch.transport.TransportService$7.doRun(TransportService.java:659) [elasticsearch-6.0.0.jar:6.0.0]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:638) [elasticsearch-6.0.0.jar:6.0.0]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-6.0.0.jar:6.0.0]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_31]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_31]