cant load into game HELP!!!!!!

if i load the game from the .exe file and not the launcher and i press start after i put in my user name and password all the buttons just go gray for about then seconds then it makes a noise and nothing happens. it wont let me play, so i try the launcher and it works fine no greying out just boots me into the menu and character screen, but after picking a server and pressing play the second i join it just says this ( Error Client error, Re-run the launcher. Sorry! (disconnecting) Time: 10 ) then it counts down from 10 and boots me off ive tried re running the launcher and resetting my computer, checking to make sure i have all the files and have the dotnetfx35 still on and working and yet still no respone i have no clue what to do and am very annoyed and clueless rn.

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