[SOLVED] JSON Path "(DWD) Deutscher Wetterdienst Pollenflug " pollen flying

Hm, i made a openhab restart, now i got this warning:

2018-09-04 15:46:24.074 [WARN ] [rthome.model.script.actions.BusEvent] - Cannot convert 'DWD_Pollen_last_' to a state type which item 'PollenLastUpdateDateTime' accepts: [DateTimeType, UnDefType].

Is openhab not recognizing the whole item-name? it is missing “update”.

Any idea?

I added .state. and now i get this warning, but rule still fails.

PollenLastUpdateDateTime.postUpdate(DWD_Pollen_last_update.state.toString.substring(0, 16))
2018-09-10 10:16:26.367 [WARN ] [rthome.model.script.actions.BusEvent] - Cannot convert '2018-09-09 11:00' to a state type which item 'PollenLastUpdateDateTime' accepts: [DateTimeType, UnDefType].