Yesterday I installed the GCAL Binding org.openhab.io.gcal-1.9.0-SNAPSHOT.jar on Openhab Runtime 1.8.3 and configured Google API. all was working fine after initial setup and I was successfully able to execute command based on calendar scheduling.
after a few hours, GCAL Binding stopped working and does not come back even if I restart Openhab. it always. on start and on every refresh (15min default), I can see the following error in Openhab.log
2016-12-25 11:06:23.290 [ERROR] [.service.AbstractActiveService] - Error while executing background thread Google Calender Event-Downloader
at org.openhab.io.gcal.internal.GCalEventDownloader.processEntries(GCalEventDownloader.java:340) ~[na:na]
at org.openhab.io.gcal.internal.GCalEventDownloader.execute(GCalEventDownloader.java:182) ~[na:na]
at org.openhab.core.service.AbstractActiveService$RefreshThread.run(AbstractActiveService.java:173) ~[na:na]
does anybody has an idea how to fix this ? I really loved the gCAL Binding even though it was just working for a few hours.