No! openHAB2 works fine and is pretty stable (I migrated two month ago and did not regret it).
BUT: there were several breaking changes in the last days, yours seems to be related to the change of id’s:
In short: if you have configured any 1.9 addons through addons.cfg, you need to change the id’s now with a suffix “1”, f.e. weather is now weather1 and so on …
