diff --git a/src/lobby.rs b/src/lobby.rs
index 22e29c3..758eaeb 100644
--- a/src/lobby.rs
+++ b/src/lobby.rs
@@ -23,7 +23,7 @@ impl Lobby {
         }
     }
 
-    pub fn join_lobby(mut self, player: Player) {
+    pub fn join_lobby(&mut self, player: Player) {
         self.players.push(player);
     }
 
diff --git a/src/router.rs b/src/router.rs
index 715fd8a..b9c30aa 100644
--- a/src/router.rs
+++ b/src/router.rs
@@ -34,7 +34,7 @@ impl App {
     pub async fn create_player(
         State(db): State<AppState>,
         json_body: Result<Json<Message>, JsonRejection>,
-    ) -> Result<axum::Json<Message>, StatusCode> {
+    ) -> Result<axum::Json<Message>, String> {
         match json_body {
             Ok(Json(message)) => {
                 println!("{:?}", message);
@@ -44,7 +44,7 @@ impl App {
                     .lock().expect("ciao");
 
                 if players.contains_key(&player.name) {
-                    return Err(StatusCode::UNAVAILABLE_FOR_LEGAL_REASONS)
+                    return Err(String::from("player already in db"))
                 }
 
                 players.insert(
@@ -55,42 +55,57 @@ impl App {
 
                 Ok(Json(Message::new("server", MessageKind::CreatePlayer, &player.name).expect("failed creating message")))
             }
-            Err(_) => Err(StatusCode::UNPROCESSABLE_ENTITY)
+            Err(_) => Err(String::from("failed parsing json message"))
         }
     }
 
     pub async fn create_lobby(
         State(db): State<AppState>,
         json_body: Result<Json<Message>, JsonRejection>,
-    ) -> Result<axum::Json<Message>, StatusCode> {
+    ) -> Result<axum::Json<Message>, String> {
         match json_body {
             Ok(Json(message)) => {
                 println!("{:?}", message);
-                let lobby: Lobby = Lobby::new();
-
+                let mut lobby: Lobby = Lobby::new();
+                
                 let mut lobbies = db.lobbies
-                    .lock().expect("ciao");
+                    .lock()
+                    .expect("failed to lock lobbies db");
 
                 if lobbies.contains_key(&lobby.id) {
-                    return Err(StatusCode::UNAVAILABLE_FOR_LEGAL_REASONS)
+                    return Err(String::from("lobby already in db"))
                 }
 
+                let players = db.players
+                    .lock()
+                    .expect("failed to lock player db");
+
+                let player_bytes = players.get(&message.content);
+
+                let player: Player = if let None = player_bytes {
+                    return Err(String::from("player not found or not yet created"));
+                } else {
+                    Player::from(serde_json::from_slice(player_bytes.unwrap()).expect("failed"))
+                };
+
+                lobby.join_lobby(player);
+
                 lobbies.insert(
                     lobby.get_id(),
-                    Bytes::copy_from_slice(lobby.encode().expect(&StatusCode::EXPECTATION_FAILED.to_string()).as_ref())
+                    Bytes::copy_from_slice(lobby.encode().expect("failed copying lobby from bytes slice").as_ref())
                 );
                 println!("{:?}", lobbies);
 
                 Ok(Json(Message::new("server", MessageKind::CreateLobby, &lobby.id).expect("failed creating message")))
             },
-            Err(_) => Err(StatusCode::UNPROCESSABLE_ENTITY),
+            Err(_) => Err(String::from("failed to parse json message")),
         }
     }
 
     pub async fn delete_player(
         State(db): State<AppState>,
         Path(player_id): Path<String>
-    ) -> Result<axum::response::Json<Message>, StatusCode> {
+    ) -> Result<axum::response::Json<Message>, String> {
         {
             let mut players = db.players
                 .lock().expect("ciao");
@@ -101,7 +116,7 @@ impl App {
                     println!("{:?}", players);
                     Ok(Json(Message::new("server", MessageKind::DeletePlayer, "user deleted").expect("a")))
                 },
-                false => Err(StatusCode::NOT_FOUND),
+                false => Err(String::from("player not found")),
             }
         }
       
@@ -110,7 +125,7 @@ impl App {
     pub async fn delete_lobby(
         State(db): State<AppState>,
         Path(lobby_id): Path<String>
-    ) -> Result<axum::response::Json<Message>, StatusCode> {
+    ) -> Result<axum::response::Json<Message>, String> {
         {
             let mut lobbies = db.lobbies
                 .lock().expect("ciao");
@@ -121,7 +136,7 @@ impl App {
                     println!("{:?}", lobbies);
                     Ok(Json(Message::new("server", MessageKind::DeleteLobby, "lobby deleted").expect("a")))
                 },
-                false => Err(StatusCode::NOT_FOUND),
+                false => Err(String::from("lobby not found in db")),
             }
         }
       
@@ -130,7 +145,7 @@ impl App {
     pub async fn join_lobby(
         State(db): State<AppState>,
         Path(lobby_id): Path<String>
-    ) -> Result<axum::response::Json<Message>, StatusCode> {
+    ) -> Result<axum::response::Json<Message>, String> {
         todo!()
     }
 
diff --git a/src/ui.rs b/src/ui.rs
index 4ed8c7b..55ca5b0 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -89,9 +89,9 @@ async fn handle_key_event(mut client: &mut Client, key_event: KeyEvent) {
                     }
                 },
                 KeyCode::Char('2') => {
-                    if client.lobby != None {
+                    if client.lobby != None || client.user == None {
                         client.popup_title = "Error".to_string();
-                        client.popup_content = "lobby already_created".to_string();
+                        client.popup_content = "lobby already_created or player not yet created".to_string();
                         client.popup = true;
                     } else {
                         let addr = client.addr.clone();
@@ -99,7 +99,7 @@ async fn handle_key_event(mut client: &mut Client, key_event: KeyEvent) {
                         let message = Message::new(
                             "",
                             MessageKind::CreateLobby,
-                            ""
+                            &client.user_name,
                         ).unwrap();
 
                         Client::send(&mut client, message, &addr, &path).await.unwrap();