I'm sorry, I toke the logs from the kb but my logs are a bit different if it matters.
U.1300.2336: Jan 13 2010:11:34:27.499: ERROR: cfg.c : 628: Error reading value for IntgDenyWriteOptions: err 2 (0x2): No such file or directory
U.1300.2336: Jan 13 2010:11:34:27.515: ERROR: cfg.c : 456: cfg load params failed for volatile variableswith err: 2
U.1300.2336: Jan 13 2010:11:34:27.515: ERROR: cli_win.c : 47: Failed to init cfg library: 2
It looks like a corrupt installation, can you uninstall MAC and do a fresh install.
Upgrade is not supported from MAC 5.0.2 to 6.1.0.