🐛 Fix TypeError exception caused by characters is None

plugins/genshin/player_cards.py

@@ -221,6 +221,10 @@ class PlayerCards(Plugin):
         if isinstance(data, str):
             await callback_query.answer(text=data, show_alert=True)
             return
+        if data.characters is None:
+            await message.delete()
+            await callback_query.answer("请先将角色加入到角色展柜并允许查看角色详情后再使用此功能，如果已经添加了角色，请等待角色数据更新后重试", show_alert=True)
+            return
         buttons = self.gen_button(data, user.id, uid, update_button=False)
         render_data = await self.parse_holder_data(data)
         holder = await self.template_service.render(
@@ -313,6 +317,8 @@ class PlayerCards(Plugin):
         update_button: bool = True,
     ) -> List[List[InlineKeyboardButton]]:
         """生成按钮"""
+        buttons = []
+        if data.characters:
             buttons = [
                 InlineKeyboardButton(
                     value.name,