Posted September 21, 2017 Can not log in having update failure. Receiving this message: Update failure! (Error could not copy pmk.jar to pmk.jar.bak) Share this post Link to post Share on other sites
Posted September 21, 2017 This can happen if you have another Wurm client running. Close all clients and try again, if it still happens use Task Manager (for Windows) to terminate all Wurm clients or reboot computer then try again. Share this post Link to post Share on other sites
