Druid data loading failed with Unable to grant lock to inactive task

Hi,

Druid data loading failed with Unable to grant lock to inactive task.

2020-Feb-26 09:29:43 AM [qtp1043882455-90] ERROR com.sun.jersey.spi.container.ContainerResponse - The RuntimeException could not be mapped to a response, re-throwing to the HTTP container
io.druid.java.util.common.ISE: Unable to grant lock to inactive Task [index_campaign_summary_1113_2020-02-24T07:25:02.700Z]
at io.druid.indexing.overlord.TaskLockbox.tryLock(TaskLockbox.java:281) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at io.druid.indexing.common.actions.LockTryAcquireAction.perform(LockTryAcquireAction.java:75) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at io.druid.indexing.common.actions.LockTryAcquireAction.perform(LockTryAcquireAction.java:34) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at io.druid.indexing.common.actions.LocalTaskActionClient.submit(LocalTaskActionClient.java:64) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at io.druid.indexing.overlord.http.OverlordResource$3.apply(OverlordResource.java:368) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at io.druid.indexing.overlord.http.OverlordResource$3.apply(OverlordResource.java:357) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at io.druid.indexing.overlord.http.OverlordResource.asLeaderWith(OverlordResource.java:683) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at io.druid.indexing.overlord.http.OverlordResource.doAction(OverlordResource.java:354) ~[druid-indexing-service-0.12.3.jar:0.12.3]
at sun.reflect.GeneratedMethodAccessor82.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181]
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) ~[jersey-server-1.19.3.jar:1.19.3]
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) ~[jersey-server-1.19.3.jar:1.19.3]
at com.sun.jersey.serv

Please suggest how to fix this issue,

Thanks in advance.