Server stops when an exception arise

[gbrian]

root@grafana:/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside# Server is listening to port 666
TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at Object.getSpecialColumn (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside/sqlproxyserver.js:240:33)
    at Object.getTimestamp (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside/sqlproxyserver.js:216:31)
    at Object.parseTimeseries (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside/sqlproxyserver.js:184:43)
    at _api.internals.try (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside/sqlproxyserver.js:147:60)
    at Object.try (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside/sqlproxyserver.js:139:18)
    at Object.parse (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside/sqlproxyserver.js:147:38)
    at _api.cmd.provider.query.then.r (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/dist/serverside/sqlproxyserver.js:106:34)
    at _fulfilled (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/node_modules/q/q.js:854:54)
    at self.promiseDispatch.done (/var/lib/grafana/plugins/grafana-simple-sql-datasource-master/node_modules/q/q.js:883:30)