Need help - can't play local game anymore -probably busted a setting through console

[JayZhee]

Hello,
Probably did something stupid while changing game settings via console on a SP game.
Put 'DropOnDeath to 4 (normal = 0,1,2 or3) trying to drop nothing...
put LandClaimExpiry... to 100, should have kept it bin 2 digits...

Now I cannot play SP anymore, get an ...'argument out of range' error and the game options panel is inactive...
Playing on remote servers works

My question: Where is this saved, and how cam I modify/cancel my changes

Thjanks in advance for any help
regards
JayZhee

[Player.name();]

The file you need to change is gameOptions.sdf which is located inside your worlds save folder in %appdata%\7DaysToDie\Saves.
To edit it you need a Hex-Editor or Notepad++.
You basically need to edit the byte directly after DropOnDeath and LandClaimExpiryTime.
To do that in Notepad++ first open the file and you should see some text and a lot of black boxes with 3 letters in each.
Search for the values you want to change and delete the first character after each.
In your case for DropOnDeath it should be a black box with EOT written in it
and for LandClaimExpiryTime it should be a 'd'.
Delete those and hold 'ALT' + 3 numbers to insert your desired values.
It is important to always enter 3 numbers, so for example to enter 15 you would hold 'ALT'
followed by 015.
To enter 0 just hold 'ALT' + 256.
Some numbers will produce those little boxes, for example 0 will be a box with NUL written in it and 3 will be ETX.
For a Hex editor just search for the name of the values you want to change and change the byte(2 hex digits) after it. In some Editors you might need to enter an edit-mode first to make changes. In that case just search the help section of that editor to find out how to do that.

I hope that helps.
If you need any more help or something is unclear, just ask.