sedatacheck does not download data if used with only a start date

sedatacheck does not download data if used with only a start date.
sedatacheck works fine with both start and end dates.
Throws the following error on entering start date

./sedatacheck.sh -d5 -U 846 -T 2015-09-01 -S 147

2015-09-21 12:01:23,393 [P2T1] INFO c.t.s.c.b.i.s.ReportServiceClient - Successfully polled report request for report ID: 3000000319587397
2015-09-21 12:01:23,394 [P2T1] DEBUG c.t.s.client.bing.impl.BingAdsClient - Downloading report '/var/local/tsa/sedata/bing/tsa-check-report-daily-2015-09-01-U846.xml.zip' with download URL https://download.api.bingads.microsoft.com/ReportDownload/Download.aspx?q=9LDJ1VXOjs9b85n3qRRtB5k23QPabAc9%2bQwlJb%2fRhZqftaqMdTxulSJUXb%2blxqi2M9Kj1Kneb1aA088IEM87AC1wnvWO3%2faiO%2f5QQ978rjCusVVYZpIMFbLwj0gYkmxlKEKMj6A3ea%2bfjmMLmUrwqyhhcPHHrWXYVB9DbmkMaa8EdUfvFHpWWTaSJrHE09ArU1vcgfN%2fHh7HCDrcdYslwJF0iIoq2nfBhXLuM0yfdttsAMh%2bck7ZsC8X12iewvIR45MrTWdHvsYnOx4PI1eU7tnzxgY1foIipX3dHcEIDQJepxrlRturxHFdjPdJdO3MXQKYh%2fVWHnedMW%2bWG6dqFyiIYSi35NptDp7tVqnwXfjg
2015-09-21 12:01:23,976 [P2T1] DEBUG c.t.s.client.bing.impl.BingAdsClient - Report downloaded
2015-09-21 12:01:23.976 (1) [P2T1]: Exception [(catch-all) running data check]:java.lang.NullPointerException
at java.util.Calendar.setTime(Calendar.java:1076)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:875)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:868)
at java.text.DateFormat.format(DateFormat.java:316)
at com.thesearchagency.searchengines.bing.BingSearchEngine.runDataCheck(BingSearchEngine.java:765)
at com.thesearchagency.searchengines.SearchEngineDataChecker$DistributionWorker$SearchEngineUserWorker.call(SearchEngineDataChecker.java:412)
at com.thesearchagency.searchengines.SearchEngineDataChecker$DistributionWorker$SearchEngineUserWorker.call(SearchEngineDataChecker.java:373)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

2015-09-21 12:01:23.976 (2) [P2T1]: sendAlert: executing command: [/usr/local/tsa/send_alarm.sh, WARNING, TSAOPS, AdMax Application [SearchEngineDataChecker]: General - Error running data check for user (846) "efea9583-1d58-4acf-ba53-e6f9e1f1a845_1"

java.lang.NullPointerException]
2015-09-21 12:01:23.998 (3) [P2T1]: Deleting local copy of /var/local/tsa/sedata/bing/tsa-check-report-daily-2015-09-01-U846.xml.zip
2015-09-21 12:01:23,998 [P2T1] DEBUG c.t.s.c.b.i.s.ReportServiceClient - ReportServiceClient - Submitting generate report request for reportType: DATA_CHECK, Accounts:[43057652]
2015-09-21 12:01:24,000 [P2T1] INFO o.a.c.s.R.I.IReportingService - Outbound Message