The problem in connecting SwarmUI with RunPod

Since yesterday, I have been fighting with the backend configuration. Claude is trying to help me fix the problem but with no result. I paste log from SwarmUI 2024-12-19 08:51:47.270 [Info] Saving backends... 2024-12-19 09:23:17.174 [Warning] User local requested delete of backend 2. 2024-12-19 09:23:17.502 [Info] Saving backends... 2024-12-19 09:23:23.521 [Warning] User local requested add-new-backend of type swarmswarmbackend. 2024-12-19 09:23:23.521 [Init] Initializing backend #3 - Swarm-API-Backend... 2024-12-19 09:23:27.507 [Info] Saving backends... 2024-12-19 09:23:27.833 [Warning] User local requested edit of backend 3. 2024-12-19 09:23:27.834 [Info] Swarm-API-Backend 3 shutting down... 2024-12-19 09:23:27.836 [Init] Initializing backend #3 - Swarm-API-Backend... 2024-12-19 09:23:28.317 [Error] Error #2 while initializing backend #3 - Swarm-API-Backend - will retry 2024-12-19 09:23:29.529 [Init] Initializing backend #3 - Swarm-API-Backend... 2024-12-19 09:23:29.619 [Error] Error #3 while initializing backend #3 - Swarm-API-Backend - will retry 2024-12-19 09:23:30.620 [Init] Initializing backend #3 - Swarm-API-Backend... 2024-12-19 09:23:30.718 [Error] Final error (4) while initializing backend #3 - Swarm-API-Backend, giving up: System.NullReferenceException: Object reference not set to an instance of an object. at SwarmUI.Backends.SwarmSwarmBackend.ValidateAndBuild() in /Users/maciejkukulka/AI-projects/SwarmUI/src/Backends/SwarmSwarmBackend.cs:line 111 at SwarmUI.Backends.SwarmSwarmBackend.Init() in /Users/maciejkukulka/AI-projects/SwarmUI/src/Backends/SwarmSwarmBackend.cs:line 355 at SwarmUI.Backends.SwarmSwarmBackend.Init() in /Users/maciejkukulka/AI-projects/SwarmUI/src/Backends/SwarmSwarmBackend.cs:line 389 at SwarmUI.Backends.BackendHandler.LoadBackendDirect(T2IBackendData data) in /Users/maciejkukulka/AI-projects/SwarmUI/src/Backends/BackendHandler.cs:line 496 2024-12-19 09:23:37.510 [Info] Saving backends...