Corrupted settings when killing CoinKiller

[Treeways]

Killing CoinKiller in Task Manager while a level is open will cause it to crash when opening a level.

OS: Windows 10

1. Open any level in CoinKiller
2. Kill CoinKiller using Task Manager
3. Reopen CoinKiller and open any level
4. Crash

The crash happens because CoinKiller tries to load the level using the cached level editor state and fails.
To fix this crash:

1. Open Windows Registry
2. Navigate to Computer\HKEY_CURRENT_USER\Software\Blarg City\CoinKiller
3. Delete the key lvleditorState