Hmm, which message will help me to find out what is the problem?
SPOILER
12. 7. 31. 오후 10:18:19.690 Wineskin[1385]: Starting up...
12. 7. 31. 오후 10:18:19.691 Wineskin[1385]: reading all configuration information...
12. 7. 31. 오후 10:18:19.700 Wineskin[1385]: Starting up WineskinX11
12. 7. 31. 오후 10:18:19.701 Wineskin[1385]: Using Engine WS8Wine1.4-rc5
12. 7. 31. 오후 10:18:19.856 Wineskin[1403]: Starting up...
12. 7. 31. 오후 10:18:19.856 Wineskin[1403]: reading all configuration information...
12. 7. 31. 오후 10:18:19.861 Wineskin[1403]: files passed in to open, will open with associated app
12. 7. 31. 오후 10:18:19.868 Wineskin[1403]: Starting up WineskinX11
12. 7. 31. 오후 10:18:19.868 Wineskin[1403]: Using Engine WS8Wine1.4-rc5
12. 7. 31. 오후 10:18:19.926 com.apple.launchd.peruser.501[280]: (0x7f90fbc31530.anonymous.WineskinX11[1399]) The following job tried to hijack the service "osu!.Wineskin.prefs" from this job: 0x7f90fbe04460.anonymous.WineskinX11
12. 7. 31. 오후 10:18:20.276 Wineskin[1385]: WineskinX11 running on PID 1399
12. 7. 31. 오후 10:18:20.277 Wineskin[1385]: Fixing user folders in Drive C to current user
12. 7. 31. 오후 10:18:20.409 Wineskin[1403]: WineskinX11 running on PID 1419
12. 7. 31. 오후 10:18:20.410 Wineskin[1403]: Fixing user folders in Drive C to current user
12. 7. 31. 오후 10:18:20.421 Wineskin[1385]: Starting specified executable in Wine
12. 7. 31. 오후 10:18:20.432 Wineskin[1403]: Starting specified executable in Wine
12. 7. 31. 오후 10:18:20.508 Wineskin[1403]: Wineserver running on PID 1465
12. 7. 31. 오후 10:18:20.522 Wineskin[1403]: Sleeping and monitoring from the background while app runs...
12. 7. 31. 오후 10:18:20.533 Wineskin[1385]: Wineserver running on PID 1465
12. 7. 31. 오후 10:18:20.548 Wineskin[1385]: Sleeping and monitoring from the background while app runs...
12. 7. 31. 오후 10:18:21.659 ReportCrash[1420]: Saved crash report for WineskinX11[1399] version test (Wineskin 2.5.4) to /Users/(username)/Library/Logs/DiagnosticReports/WineskinX11_2012-07-31-221821_(computername).crash
12. 7. 31. 오후 10:18:21.874 Wineskin[1385]: Application finished, cleaning up and shut down...
12. 7. 31. 오후 10:18:21.919 Wineskin[1385]: Finished!
12. 7. 31. 오후 10:18:21.950 Wineskin[1403]: Application finished, cleaning up and shut down...
12. 7. 31. 오후 10:18:22.157 sandboxd[1536]: ([399]) mdworker(399) deny file-read-data /private/tmp (pre-ls-info fstype:hfs fsflag:480D000 flags:240000004C diag:0 uti:com.apple.application-file plugin:/Library/Spotlight/Application.mdimporter - find suspect file using: sudo mdutil -t 36395916)
12. 7. 31. 오후 10:18:22.000 kernel[0]: Sandbox: sandboxd(1536) deny mach-lookup com.apple.coresymbolicationd