Windows please help the game crash in co-op

[mgnj]

my game is set to english and i don't know what is the problem with the language??
it crashed several times when i'm hosting the co-op, and I haven't found the solution forum yet

here's my latest log :

Message: The game language is set to a custom one, but the language info is no longer available.
InnerException:
Stack Trace: at StardewValley.LocalizedContentManager.LanguageCodeString(LanguageCode code) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\LocalizedContentManager.cs:line 569
at StardewValley.LocalizedContentManager.Load[T](String assetName, LanguageCode language) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\LocalizedContentManager.cs:line 451
at StardewValley.Menus.ChatMessage.breakNewLines(StringBuilder sb) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Menus\ChatBox.cs:line 156
at StardewValley.Menus.ChatMessage.parseMessageForEmoji(String messagePlaintext) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Menus\ChatBox.cs:line 120
at StardewValley.Menus.ChatBox.receiveChatMessage(Int64 sourceFarmer, Int32 chatKind, LanguageCode language, String message) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Menus\ChatBox.cs:line 1433
at StardewValley.Multiplayer.processIncomingMessage(IncomingMessage msg) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Network\Multiplayer.cs:line 1835
at StardewValley.Network.GameServer.processIncomingMessage(IncomingMessage message) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Network\GameServer.cs:line 767
at StardewValley.SDKs.Steam.SteamNetServer.PollFarmhandMessages() in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\SDKs\Steam\SteamNetServer.cs:line 586
at StardewValley.SDKs.Steam.SteamNetServer.receiveMessages() in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\SDKs\Steam\SteamNetServer.cs:line 600
at StardewValley.Network.GameServer.receiveMessages() in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Network\GameServer.cs:line 260
at StardewValley.Multiplayer.UpdateEarly() in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Network\Multiplayer.cs:line 1916
at StardewValley.Game1._update(GameTime gameTime) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Game1.cs:line 3497
at StardewValley.Game1.Update(GameTime gameTime) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Game1.cs:line 3176
at StardewValley.GameRunner.Update(GameTime gameTime) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\LocalMultiplayer.cs:line 927
at Microsoft.Xna.Framework.Game.DoUpdate(GameTime gameTime) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Game.cs:line 917
at Microsoft.Xna.Framework.Game.Tick() in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Game.cs:line 620
at Microsoft.Xna.Framework.SdlGamePlatform.RunLoop() in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Platform\SDL\SDLGamePlatform.cs:line 91
at Microsoft.Xna.Framework.Game.Run(GameRunBehavior runBehavior) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\MonoGame.Desktop\MonoGame.Framework\Game.cs:line 481
at StardewValley.Program.Main(String[] args) in D:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Program.cs:line 200

Game Version: 1.6.5 build 24110
SDK Helper: SteamHelper
Game Language: en
GPU: NVIDIA GeForce GTX 1050/PCIe/SSE2
OS: Win32NT Microsoft Windows NT 10.0.19045.0
Multiplayer (Host)
In-game Date: Winter 27 Y1 Time of Day: 2020
Game Location: FarmHouse