wrobot keeps closing down my client

Hello,
Disable all Wow addons, all WRobot plugins and share your log file please ( https://wrobot.eu/forums/topic/1779-how-to-post-your-log-file-with-your-topic/ ).
WRobot works only with original (unmodified) game client. You can try to download again game client (not the client provided by your server, some modify him).