How do I fix/prevent this error?
Error importing data: org.xml.sax.SAXException: com.atlassian.jira.exception.DataAccessException: org.ofbiz.core.entity.GenericEntityException: while inserting: [GenericEntity:OSHistoryStep][owner,][caller,qm:1ea0110b-4773-4956-8dc5-9835fc4114a4:5b3f71213a19e02e9b935e18][stepId,8][actionId,1031][finishDate,2018-07-13 20:57:02.329][id,111242][startDate,2018-07-13 20:53:35.329][entryId,73524][status,null] (SQL Exception while executing the following:INSERT INTO OS_HISTORYSTEP (ID, ENTRY_ID, STEP_ID, ACTION_ID, OWNER, START_DATE, DUE_DATE, FINISH_DATE, STATUS, CALLER) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?) (Data truncation: Data too long for column 'CALLER' at row 1)) java.lang.Exception: com.atlassian.jira.exception.DataAccessException: org.ofbiz.core.entity.GenericEntityException: while inserting: [GenericEntity:OSHistoryStep][owner,][caller,qm:1ea0110b-4773-4956-8dc5-9835fc4114a4:5b3f71213a19e02e9b935e18][stepId,8][actionId,1031][finishDate,2018-07-13 20:57:02.329][id,111242][startDate,2018-07-13 20:53:35.329][entryId,73524][status,null] (SQL Exception while executing the following:INSERT INTO OS_HISTORYSTEP (ID, ENTRY_ID, STEP_ID, ACTION_ID, OWNER, START_DATE, DUE_DATE, FINISH_DATE, STATUS, CALLER) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?) (Data truncation: Data too long for column 'CALLER' at row 1))