I may sound like a parrot, but the log file indicates that it is still a permission problem. The installer is very whimsical about the permissions - every file and folder down to the bottom in the ArchiCAD folder has to be rw. Now, you have indicated that you have set everything to rwx, so I am a bit puzzled.
Is there anything in your ArchiCAD folder that is not part of the original installaton (third party add-ons, custom libraries, anything?) Check how their permissions are different from components that belong to the original installation.
Gergely Kmethy
VP, Customer Success, Graphisoft