t changing anything the error gets smaller:

Error importing data: org.xml.sax.SAXException: com.atlassian.jira.exception.DataAccessException: org.ofbiz.core.entity.GenericEntityException: while inserting: [GenericEntity:ApplicationUser][id,10146][userKey,pauli_burk][lowerUserName,pauli_burk] (SQL Exception while executing the following:INSERT INTO app_user (ID, user_key, lower_user_name) VALUES (?, ?, ?) (Deadlock found when trying to get lock; try restarting transaction)) java.lang.Exception: com.atlassian.jira.exception.DataAccessException: org.ofbiz.core.entity.GenericEntityException: while inserting: [GenericEntity:ApplicationUser][id,10146][userKey,pauli_burk][lowerUserName,pauli_burk] (SQL Exception while executing the following:INSERT INTO app_user (ID, user_key, lower_user_name) VALUES (?, ?, ?) (Deadlock found when trying to get lock; try restarting transaction))