WHAT IS THE PROBLEM?
The field menu can be activated even if you don't own the land.

HOW CAN I REPRODUCE THE ERROR?
Stand on any field/land you don't own, open F12 menu, choose Field Options

Additional information (please complete the following information):

• Game version [e.g. v1.3]:
• Mod Version [e.g. 1.0.0.0]:
• Type of game client [e.g. Steam, Giants]:
• Do you play single or multiplayer [Singleplayer/Multiplayer]: SP
• Are you the host (if multiplayer) [yes/no]: