MapleStory: If MSCW Gave You Everything You Want and Solved Every Problem It Has? (Workarounds)
Short answer
Suggested fix (unconfirmed): Verify game files through Steam and update
The problem
You would not care because global MS has everything that people wish MSCW had and no one GAF about it. MSCW is the bad boy that neglects you, and MS current is the doormat that gives you everything you want, and is the one you marry but never date. Guess which one gets all the action in the dating world. And the steam charts numbers keep going up despite everyone nagging. Fancy that.
Suggested fix (unconfirmed): Check that you are logged into the correct server world and Nexon account where you created the character. If the character is genuinely missing and was recently active, submit a ticket to MapleStory customer support.
Suggested fix (unconfirmed): Wait a few months for the player traffic to die down, or group with your fiancée to out-damage the competition. If you still struggle, return to hunt the boss next year when low-level areas are less crowded.
Suggested fix (unconfirmed): Verify your game files instead of reinstalling. This error simply means you haven't received the latest update through Steam yet.
Day One Fixes