Error when using Database.Find

Good Day,

I am getting an error at random intervals when using the following method:

Databse.Find ( int SearchKind, int[] itemTypes, int AttrTypeNum, int LocaleId, String sAttrValue, int CompareFlags )

The error retrieved from the system.out file:

report-engine-exception: cannot initialize selection objects
    at com.aris.modeling.server.bl.common.reportobjects.aris.logic.AArisReportRoot.executeUseCase(AArisReportRoot.java:1189)
    at com.aris.modeling.server.bl.common.reportobjects.aris.logic.AItem.Find(AItem.java:1802)
    at com.aris.modeling.server.bl.common.reportobjects.aris.logic.AItem.Find(AItem.java:1676)
    at com.aris.modeling.server.bl.common.reportobjects.aris.logic.AItem.Find(AItem.java:1962)
    at com.aris.modeling.server.bl.common.reportobjects.aris.logic.AItem.Find(AItem.java:1900)
    at com.aris.modeling.server.bl.common.reportobjects.aris.logic.ADatabase.Find(ADatabase.java:1268)
Caused by: com.aris.modeling.common.core.arisom.base.AAOMLockException: object -uB1g55QD3T:p:L is locked by e0787ee7-be78-475c-bde4-25fe641339ed
    at com.aris.modeling.common.core.arisomimpl.base.AObjectProviderToAOMExceptionFactory.createAAOMException(AObjectProviderToAOMExceptionFactory.java:26)
    at com.aris.modeling.common.core.arisomimpl.base.AObjectProviderToAOMExceptionFactory.createAndThrowAAOMException(AObjectProviderToAOMExceptionFactory.java:39)
    at com.aris.modeling.common.core.arisomimpl.base.ASaveOperation.invoke(ASaveOperation.java:298)
    at com.aris.modeling.common.core.arisomimpl.base.ASession.intermediateSaveModifiedObjects(ASession.java:291)
    at com.aris.modeling.common.core.arisomimpl.base.ASession.saveModifiedObjectsInternal(ASession.java:224)
    at com.aris.modeling.common.core.arisomimpl.base.ASession.saveModifiedObjects(ASession.java:188)
    at com.aris.modeling.common.core.arisomimpl.directctx.AUseCaseExecutor.execDAOCall(AUseCaseExecutor.java:271)
    at com.aris.modeling.common.core.arisomimpl.directctx.ADirectContext.execDAOCall(ADirectContext.java:337)
    at com.aris.modeling.common.core.arisomimpl.methodctx.AMethodContext.execDAOCall(AMethodContext.java:83)
    at com.aris.modeling.common.core.arisomimpl.accessrightctx.AAccessRightContext.execDAOCall(AAccessRightContext.java:144)
    at com.aris.modeling.common.core.arisomimpl.arisctx.AArisContext.execDAOCall(AArisContext.java:129)
    at com.aris.modeling.server.bl.common.reportobjects.aris.logic.AArisReportRoot.executeUseCase(AArisReportRoot.java:1185)
    ... 32 more
Caused by: com.aris.modeling.common.core.arisomimpl.objectprovider.impl.AObjectProviderLockException: object -uB1g55QD3T:p:L is locked by e0787ee7-be78-475c-bde4-25fe641339ed
    at com.aris.modeling.server.services.aom.aomobjectproviderimpl.AObjectProvider.lockForDelete(AObjectProvider.java:710)
    at com.aris.modeling.common.core.arisomimpl.base.ASaveOperation.invoke(ASaveOperation.java:264)
    ... 41 more
Caused by: com.aris.modeling.server.services.lockservice.ObjectLockedException: object -uB1g55QD3T:p:L is locked by e0787ee7-be78-475c-bde4-25fe641339ed
    at com.aris.modeling.server.services.lockservice.cipbased.ALockServiceImpl.lock(ALockServiceImpl.java:106)
    at com.aris.modeling.server.services.aom.aomobjectproviderimpl.AObjectProvider.lockForDelete(AObjectProvider.java:688)

My script creates/updates/delete objects from data retrieved from a web service.

All objects are locked and unlocked when needed. Most of the times the objects are locked when I try to find them in the database, but like I said it sometimes gives an error.

Anyone able to help with this issue?

Regards,

Freddy Barkhuizen