diff --git a/astrbot/core/db/migration/migra_3_to_4.py b/astrbot/core/db/migration/migra_3_to_4.py
index e3eccd292..b8947cbd4 100644
--- a/astrbot/core/db/migration/migra_3_to_4.py
+++ b/astrbot/core/db/migration/migra_3_to_4.py
@@ -68,7 +68,7 @@ async def migration_conversation_table(
                     platform_id = get_platform_id(
                         platform_id_map, session.platform_name
                     )
-                    session.platform_name = platform_id  # 更新平台名称为新的 ID
+                    session.platform_id = platform_id  # 更新平台名称为新的 ID
                     conv_v2 = ConversationV2(
                         user_id=str(session),
                         content=json.loads(conv.history) if conv.history else [],
diff --git a/astrbot/core/persona_mgr.py b/astrbot/core/persona_mgr.py
index a01106607..add3c74bc 100644
--- a/astrbot/core/persona_mgr.py
+++ b/astrbot/core/persona_mgr.py
@@ -52,7 +52,7 @@ class PersonaManager:
             return DEFAULT_PERSONALITY
         try:
             return next(p for p in self.personas_v3 if p["name"] == default_persona_id)
-        except ValueError:
+        except Exception:
             return DEFAULT_PERSONALITY
 
     async def delete_persona(self, persona_id: str):