Every reboot or start up of OH I have following error in log:
2020-07-11 13:07:29.103 [ERROR] [org.openhab.core.ephemeris ] - bundle org.openhab.core.ephemeris:2.5.0 (143)[org.openhab.ephemeris(62)] : The activate method has thrown an exception java.lang.IllegalArgumentException: No enum constant java.time.DayOfWeek.""MONDAY at java.lang.Enum.valueOf(Enum.java:238) ~[?:1.8.0_252] at java.time.DayOfWeek.valueOf(DayOfWeek.java:109) ~[?:1.8.0_252] at org.eclipse.smarthome.core.ephemeris.internal.EphemerisManagerImpl.addDayset(EphemerisManagerImpl.java:330) ~[?:?]
I’m on a Rpi4 running current openhabian 2.5.6-2, but I have this since a very long time.
After a few minutes this error stops and doesn’t come up again - until I restart or reboot.
Is this something I can ignore or should this be solved?
Any help is appreciated!