This problem is caused by an unpatched Kro Ragnarok Client. To patch it please visit the Patching Kro article. Retrieved from "http://essence.wikia.com/wiki/Gravity_Error_after_Opening_Skill_Window?oldid=53" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.