As an user, After upgrading from version 5.1.5 to 5.2.0 all Template files are lost

JIRA log file:

2017-09-07 08:40:15,876 https-jsse-nio-443-exec-13 ERROR mauchan1 520x1609x1 qk8i29 136.230.9.20 /rest/jiraxporter/1.0/templates/admin [c.x.j.rest.services.XporterTemplatesService] A sql exception has occured.com.atlassian.activeobjects.internal.ActiveObjectsSqlException: There was a SQL exception thrown by the Active Objects library:Database: - name:Microsoft SQL Server - version:12.00.5207 - minor version:0 - major version:12Driver: - name:jTDS Type 4 JDBC Driver for MS SQL Server and Sybase - version:1.3.1java.sql.SQLException: Invalid column name 'true'.