Closing socket endpoints not connected errors

[Jeez-nl]

Fill out general information
OS (windows, linux, ...): Linux docker
BeamMP-Server Version: v3.9.2

Describe the bug
A clear and concise description of what the bug is.
Client connections occasionally cause the following error when the connection breaks;
[04/04/26 03:00:43] [INFO] Identifying new ClientConnection...
[04/04/26 03:00:43] [ERROR] Error during handling of code C - client left in invalid state, closing socket: remote_endpoint: Transport endpoint is not connected [system:107 at /__w/BeamMP-Server/BeamMP-Server/bin/vcpkg_installed/x64-linux/include/boost/asio/detail/reactive_socket_service.hpp:218:7 in function 'boost::asio::detail::reactive_socket_service::endpoint_type boost::asio::detail::reactive_socket_service::remote_endpoint(const implementation_type&, boost::system::error_code&) const']

This error may occur on initiation, but also after a successful connection if the client disconnects while downloading server files (cannot confirm if user choice or game crash).

Occasionally, connections are not terminated. I can see players connected to the server with 0 ping, and it is not possible to kick those players from the server console

To Reproduce
Steps to reproduce the behavior:
Cannot reproduce reliably. When connecting to my server myself, I have had no issues so far. I do have confirmation that this also happens on someone else's server, which is also hosted externally in a Linux Docker image

Expected behavior
The same behaviour as before the migration to the new systems

Logs
Please attach the Server.log from the run in which the issue appeared, preferably with Debug turned on in the ServerConfig.toml.

Server.old.log

Additional context
Add any other context about the problem here.

Server is running Nickel and Flood scripts, both of which return a nil value when getting playernames. I'm removing both to check if the issue persists.

[Mennims]

Same issue. Not sure if it's impacting anything yet, only happened after the update.

[04/04/26 00:01:51] [INFO] Identifying new ClientConnection...
[04/04/26 00:01:51] [INFO] Identification success
[04/04/26 00:01:51] [INFO] Client connected
[04/04/26 00:01:51] [INFO] Assigned ID 1 to guest8165974
[04/04/26 00:02:05] [LUA] [�[94mBJC�[0m] �[0mPlayer guest7815516 eliminated in position 1 with 0 remaining�[0m
[04/04/26 00:02:14] [LUA] [�[94mBJC�[0m] �[0m[MD_SERVER] Random cars: auto-added 2 participants (leftPlayers excluded: 0)�[0m
[04/04/26 00:02:14] [LUA] [�[94mBJC�[0m] �[0mMennimsDerby started: arena=Angle participants=2 useRandomCars=true�[0m
[04/04/26 00:02:14] [LUA] [�[94mBJC�[0m] �[0mMennimsDerby teleport: playerID=1 -> pos -795.446472,1238.0,273.406647�[0m
[04/04/26 00:02:14] [LUA] [�[94mBJC�[0m] �[0mMennimsDerby teleport: playerID=0 -> pos -607.507996,1253.0,205.002609�[0m
[04/04/26 00:02:14] [CHAT] (to everyone) ^eUse ^l^c/leave^e to change vehicle, ^l^c/join^e when ready.
[04/04/26 00:02:14] [LUA] [�[94mBJC�[0m] �[0mMennimsDerby spawn-ready timeout scheduled in 13s�[0m
[04/04/26 00:02:14] [ERROR] Failed to send mod 'Resources/Client/Carkour_Banger.zip' to client 1: Broken pipe
[04/04/26 00:02:14] [INFO] Scoped timer: "Download of 'Resources/Client/Carkour_Banger.zip' for client 1" took 21607ms
[04/04/26 00:02:14] [ERROR] Error during handling of code C - client left in invalid state, closing socket: remote_endpoint: Transport endpoint is not connected [system:107 at /__w/BeamMP-Server/BeamMP-Server/bin/vcpkg_installed/x64-linux/include/boost/asio/detail/reactive_socket_service.hpp:218:7 in function 'boost::asio::detail::reactive_socket_service::endpoint_type boost::asio::detail::reactive_socket_service::remote_endpoint(const boost::asio::detail::reactive_socket_service::implementation_type&, boost::system::error_code&) const']
[04/04/26 00:02:16] [INFO] Identifying new ClientConnection...
[04/04/26 00:02:16] [ERROR] Error during handling of code C - client left in invalid state, closing socket: remote_endpoint: Transport endpoint is not connected [system:107 at /__w/BeamMP-Server/BeamMP-Server/bin/vcpkg_installed/x64-linux/include/boost/asio/detail/reactive_socket_service.hpp:218:7 in function 'boost::asio::detail::reactive_socket_service::endpoint_type boost::asio::detail::reactive_socket_service::remote_endpoint(const boost::asio::detail::reactive_socket_service::implementation_type&, boost::system::error_code&) const']

[shedowrite]

After the update, my server stopped working and keeps giving the same error.