fixed a bit

app/api/auth/[...nextauth]/route.js

@@ -31,14 +31,17 @@ export const authOptions = {
                 token.id = user.id;
                 token.role = user.role;
                 token.username = user.username;
+                token.teamId = user.teamId;
             }
             return token;
         },
         async session({ session, token }) {
             if (token) {
+                session.user = session.user || {};
                 session.user.id = token.id;
                 session.user.role = token.role;
                 session.user.username = token.username;
+                session.user.teamId = token.teamId;
             }
             return session;
         }