Good afternoon I ran into a problem that Rust+ does not work on my server. The server shows that Rust+ is enabled and I can send a request to connect to the phone. After sending the request, the request comes to the phone, but upon confirmation it gives the error "Failed to get information from the server."
In the console at startup, throw an error:
Game created! type was : assets/prefabs/gamemodes/vanilla.prefab
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)

Failed to check connectivity to the companion server: System.NullReferenceException: Object reference not set to an instance of an object
at Steamworks.SteamServer.get_PublicIp() [0x00005] in <9f92ce1abb3a4a029e3bc1d14e2e6f26>:0
at ConVar.App.GetPublicIP() [0x00029] in <17a7cde28a5445d384a666abdc319850>:0
at CompanionServer.Server+<GetPublicIPAsync>d__23.MoveNext() [0x0002b] in <17a7cde28a5445d384a666abdc319850>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() [0x0000c] in <fb001e01371b4adca20013e0ac763896>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <fb001e01371b4adca20013e0ac763896>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <fb001e01371b4adca20013e0ac763896>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <fb001e01371b4adca20013e0ac763896>:0
at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult() [0x00000] in <fb001e01371b4adca20013e0ac763896>:0
at CompanionServer.Server+<CheckConnectivity>d__22.MoveNext() [0x00086] in <17a7cde28a5445d384a666abdc319850>:0
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)

[S_API] SteamAPI_Init(): Loaded local 'steamclient.so' OK.
CAppInfoCacheReadFromDiskThread took 1 milliseconds to initialize
Setting breakpad minidump AppID = 252490
[S_API FAIL] Tried to access Steam interface SteamNetworkingUtils004 before SteamAPI_Init succeeded.
Steam Server Initialized

My server is on LinuxGSM ubuntu.
My startup file:
ip="*.*.*.*"
port="28015"
rconport="28016"
appport=28085
queryport=28017
rconpassword="----"
servername="[EU] Survival Sanctuary 2X | Trio"
serverlevel="Procedural Map"
rconweb="1"
gamemode="vanilla"
saveinterval="100"
seed="489476413"
#salt=""
maxplayers="100"
worldsize="3500"
tickrate="30"