Yeah! Now the error abow was generated by another custom plugin which I deleted and now all is working like a sharme!
So, hoping this may help some other guys, in my case I have two problems:
- During upgrade from 1.6 the system created a rule that disable section of my custom plugin named “damocles_in”. The solution was delete this rule.
- I had another old custom plugin which generated un’exeption. The solution was delete this plugin
Thanks to all for the support and suggestions!