Sniper Ghost warrior Contracts 2 crashes on load

Hi,

I installed Sniper ghost warrior Contracts 2 on steam and start playing. Under proton experimental game crashed when I wanted to go into level, then I switched to proton 9x and game started and I was able to play. I played for two days and then for no apparent reason game start to crash again when I tried to go into level.

If I run steam in console after game crash I get this output:

pid 44756 != 44755, skipping destruction (fork without exec?)
Game 1338770 created interface STEAMAPPS_INTERFACE_VERSION008 / 
Game 1338770 created interface STEAMREMOTESTORAGE_INTERFACE_VERSION014 / 
Game 1338770 created interface STEAMUSERSTATS_INTERFACE_VERSION012 / 
Game 1338770 created interface SteamController008 / 
Game 1338770 created interface SteamFriends017 / 
Game 1338770 created interface SteamInput002 / 
Game 1338770 created interface SteamUser021 / 
Game 1338770 created interface SteamUser021 / User
Game 1338770 created interface SteamUtils010 / 
Game 1338770 method call count for IClientRemoteStorage::IsCloudEnabledForApp : 25
Game 1338770 method call count for IClientRemoteStorage::IsCloudEnabledForAccount : 25
Game 1338770 method call count for IClientRemoteStorage::GetFileNameAndSize : 54
Game 1338770 method call count for IClientRemoteStorage::GetFileCount : 3
Game 1338770 method call count for IClientRemoteStorage::FileExists : 22
Game 1338770 method call count for IClientRemoteStorage::GetFileSize : 20
Game 1338770 method call count for IClientRemoteStorage::FileRead : 20
Game 1338770 method call count for IClientUserStats::GetAchievementDisplayAttribute : 88
Game 1338770 method call count for IClientUserStats::GetAchievement : 44
Game 1338770 method call count for IClientUserStats::RequestCurrentStats : 1
Game 1338770 method call count for IClientAppManager::GetCurrentLanguage : 1
Game 1338770 method call count for IClientUtils::RecordSteamInterfaceCreation : 11
Game 1338770 method call count for IClientUtils::GetAppID : 15
Game 1338770 method call count for IClientUtils::GetIPCountry : 3
Game 1338770 method call count for IClientFriends::GetPersonaName : 2
Game 1338770 method call count for IClientUser::GetAuthSessionTicket : 2
Game 1338770 method call count for IClientUser::GetSteamID : 1
Game 1338770 method call count for IClientUser::BLoggedOn : 1
Uploaded AppInterfaceStats to Steam

(process:44909): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
reaping pid: 44909 -- gameoverlayui

Anyone know what is the cause that I can’t run the game anymore? I tried various proton versions without success. Game starts but after it loads when I click to enter the level it crashes.