After the newest update, I keep getting error such as the client suddenly disapeared and I tried to redownload it. However I get this error when I lauched the client. I already had a hard time to download the client without using google chrome cause of the antivirus.
That would be caused by your antivirus. Either disable it or disable it and then make an exception for the MapleRoyals folder. For the google chrome error just simply go into settings > Advanced Tab > Uncheck "Protect me Against Dangerous Websites"