Importing Issues

Hi, I am new to blender and Pyprp, I tried it once before and got the same issues as I am now and lost interest. I downloaded all the current files, and when trying to import an Uru age I either get a alcresmanager.pyy error or this time I tried importing Kirel and everything was going fine until this error came up ValueError: invalid bit<s> set in mask does anyone know what that means? For the former issue I did some reading and see many get that error, is there a fix or workaround? Any help would be appreciated. Thanks for your time.