fix db closure

main.py

@@ -142,8 +142,7 @@ def get_info():
     cpu_percent = psutil.cpu_percent(interval=0.5)
     ram_percent = psutil.virtual_memory().percent
     disk_percent = psutil.disk_usage('/').percent
-    
+    db.close()
-    
     system_information = Info(
         uptime=datetime.datetime.now() - datetime.timedelta(seconds=delta_seconds),
         cpu=cpu_percent,
@@ -166,6 +165,7 @@ def get_limits():
     if not limits:
         db.close()
         raise HTTPException(status_code=404, detail="Limits not found")
+    db.close()
     return {
         "cpu_threshold": limits.cpu_threshold,
         "ram_threshold": limits.ram_threshold,