The BOT runs, so I discard any problem with it or the Agent Bot. It seems to an issue with the BOT editor. Again, sometimes it works normally. Weird.
UPDATE: Well, after four successfull runs, it stopped working even from "Run bot now" so disregard. No way to run a bot.
Seriously, I love AA360 capabilites but I cannot recommend my Customers to invest in a product that you never know if it will run. And if its a "Community Edition" issue (and the Enterprise Edition runs flawlesly) well... I won't endorse that neither.