diff --git a/backend/app/api/dependencies.py b/backend/app/api/dependencies.py
index c93b8edf..2efd8dd1 100644
--- a/backend/app/api/dependencies.py
+++ b/backend/app/api/dependencies.py
@@ -2,7 +2,7 @@
 Shared dependencies for API routes
 """
 from fastapi import Depends
-from app.services.trading_service import TradingService, trading_service
+from backend.app.services.trading_service import TradingService, trading_service
 
 
 def get_trading_service() -> TradingService:
diff --git a/backend/app/api/routes.py b/backend/app/api/routes.py
index a25b9042..f9270074 100644
--- a/backend/app/api/routes.py
+++ b/backend/app/api/routes.py
@@ -5,15 +5,16 @@ from fastapi import APIRouter, Depends, HTTPException
 from datetime import datetime
 import logging
 
-from app.models.schemas import (
+from backend.app.models.schemas import (
     AnalysisRequest,
     AnalysisResponse,
     ConfigResponse,
     HealthResponse,
+    Ticker,
 )
-from app.services.trading_service import TradingService
-from app.api.dependencies import get_trading_service
-from app.core.config import settings
+from backend.app.services.trading_service import TradingService
+from backend.app.api.dependencies import get_trading_service
+from backend.app.core.config import settings
 
 logger = logging.getLogger(__name__)
 
@@ -54,7 +55,7 @@ async def run_analysis(
     logger.info(f"Received analysis request for {request.ticker} on {request.analysis_date}")
     
     # Run analysis with all provided parameters including API keys
-    result = await trading_service.run_analysis(
+    result = await service.run_analysis(
         ticker=request.ticker,
         analysis_date=request.analysis_date,
         openai_api_key=request.openai_api_key,
diff --git a/backend/app/core/cors.py b/backend/app/core/cors.py
index 07b3d648..882bcc8f 100644
--- a/backend/app/core/cors.py
+++ b/backend/app/core/cors.py
@@ -1,8 +1,10 @@
 """
-CORS configuration for TradingAgents Backend API
+CORS Configuration
 """
+from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from app.core.config import settings
+
+from backend.app.core.config import settings
 
 
 def setup_cors(app):
diff --git a/backend/app/main.py b/backend/app/main.py
index 49f3dd5a..e9c95a11 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -7,9 +7,9 @@ import logging
 import sys
 from pathlib import Path
 
-from app.core.config import settings
-from app.core.cors import setup_cors
-from app.api.routes import router
+from backend.app.core.config import settings
+from backend.app.core.cors import setup_cors
+from backend.app.api.routes import router
 
 # Configure logging
 logging.basicConfig(
diff --git a/backend/app/services/trading_service.py b/backend/app/services/trading_service.py
index bfc63e9d..40368297 100644
--- a/backend/app/services/trading_service.py
+++ b/backend/app/services/trading_service.py
@@ -12,7 +12,7 @@ sys.path.insert(0, str(Path(__file__).parent.parent.parent.parent))
 
 from tradingagents.graph.trading_graph import TradingAgentsGraph
 from tradingagents.default_config import DEFAULT_CONFIG
-from app.core.config import settings
+from backend.app.core.config import settings
 
 logger = logging.getLogger(__name__)