Patcher says that have client already running? Game won't be updated with client already opened. Do you have Perfect World running in the background? if yes, please close it. If you don't see Perfect World running in the background, please kill elementclient.exe process in Task Manager or reboot your computer.
Also you may need to add patcher.exe and elementclient.exe to your antivirus exception list, if the above advice didn't help.
