Hello iceman,
I have tried to run the mission without any mods just the altislife.altis.pbo (v3.1.4.8) and the same thing happens. Using tadst to launch the server. I have also included my log files again with this method labelled yacobm82

thanks for the reply torndeco but the database for altis lifev3.1.8 doesn't contain any longtext datatypes. have a look yourself:

ip: 2.30.63.165

port: 3406

user: root

password: no password

to add to the fix given by BlenderRus just download his rar file and then add the file inside the addon folder into C:\Program Files (x86)\Steam\SteamApps\common\Arma 3\Addons and then you can use the gui editor again