Following indices are missing in database (related with history cleanup of process instances):

create index ACT_IDX_HI_JOB_LOG_EX_STACK on ACT_HI_JOB_LOG(JOB_EXCEPTION_STACK_ID_);
create index ACT_IDX_HI_VARINST_BYTEAR on ACT_HI_VARINST(BYTEARRAY_ID_);
create index ACT_IDX_HI_DETAIL_BYTEAR on ACT_HI_DETAIL(BYTEARRAY_ID_);
create index ACT_IDX_HI_EXT_TASK_LOG_ERROR_DET on ACT_HI_EXT_TASK_LOG(ERROR_DETAILS_ID_);
create index ACT_IDX_HI_COMMENT_TASK on ACT_HI_COMMENT(TASK_ID_);
create index ACT_IDX_HI_COMMENT_PROCINST on ACT_HI_COMMENT(PROC_INST_ID_);
create index ACT_IDX_HI_ATTACHMENT_CONTENT on ACT_HI_ATTACHMENT(CONTENT_ID_);
create index ACT_IDX_HI_ATTACHMENT_PROCINST on ACT_HI_ATTACHMENT(PROC_INST_ID_);
create index ACT_IDX_HI_ATTACHMENT_TASK on ACT_HI_ATTACHMENT(TASK_ID_);
create index ACT_IDX_HI_TASKINST_PROCINST on ACT_HI_TASKINST(PROC_INST_ID_);
create index ACT_IDX_HI_TASKINST_ID_PROCINST on ACT_HI_TASKINST(ID_,PROC_INST_ID_);
create index ACT_IDX_HI_IDENTITYLINK_TASK on ACT_HI_IDENTITYLINK(TASK_ID_);
create index ACT_IDX_HI_INCIDENT_PROCINST on ACT_HI_INCIDENT(PROC_INST_ID_);