Hi!
I bought today this game on gog and I installed it but game is not working.
Here is lastest log:
{13:21:20.202} ERRR: [RestClient] > SendRequest failed. Unable to establish connection with server. Check you have a working network connection.
{13:21:26.340} ERRR: [RTTI] > ERROR in preset file physicalswitchdi_dlc17.pre --- duplicated preset name IT_crate_opening in group Type
{13:21:26.941} ERRR: [Parser] > Param 0 in function BySpikes() is not a bool
{13:21:27.134} ERRR: [Quests] > [65535] [Quests::QuestManager::ReadFileDefinitions] There aren't any root nodes in the file - probably invalid xml contents
{13:21:27.134} ERRR: [Quests] > [65535] Failed reading quest definition from file data/quests/stadium/stadium_arena2_quest.xml
{13:21:27.653} ERRR: [Quests] > [65535] [Quests::QuestManager::ReadFileDefinitions] There aren't any root nodes in the file - probably invalid xml contents
{13:21:27.653} ERRR: [Quests] > [65535] Failed reading quest definition from file data/quests/stadium/stadium_arena2_quest.xml
{13:21:27.865} ERRR: [Lobby] > [CLobbyProfile::SignIn] Unsupported!
Anyone can help?

The error popped up earlier (https://steamcommunity.com/app/239140/discussions/0/490125103639272072/?l=ukrainian) already, so it doesn't seem to be related to v1.30.

It seems to be related to the DLC17, which is "The Following" and DLC16, which is Boozak Stadium.
The value 65535 is the highest index of a 16bit value, probably the attempt to read a character into a char16_t from an UTF16 text file.
The error also refers to a file "stadium_arena2_quest.xml", however, in my (working) installation, such a file doesn't exists.

My first guess is that you messed up the installation , maybe updating the main game but not the DLCs or mixing a GOG Main-Game with Steam-DLC or vise-versa. So, this is something you can answer yourself.

Also of interest, if you installed 32 or 64 bit version and how far you got. Did it crash on launch, on loading a save game, while playing, moving to a new sector or starting a DLC?

Search in your DL directory for a data/quests/stadium/stadium_arena2_quest.xml file. if this exists, something is definitely wrong. My structure looks like [see attachment|.