Hey Darkhain,
the MessageLog seems to complain about not finding Base.lsb. This always means that the data path is not set correctly. Could you confirm if your data path is still pointing to the correct folder, as explained in the
Setup Guide?
Since the editor was already set up once, you can access the settings window via the initial
Project Browser window (The purple button with the gears - #7 on the wiki page overview image). Be sure to press Cancel and close the editor after saving the new settings, they only get applied after a restart.
Sincerely,
Kevin