diff --git a/src/lua_plugin_manage.c b/src/lua_plugin_manage.c
index 1686ff0..4fd6b8e 100644
--- a/src/lua_plugin_manage.c
+++ b/src/lua_plugin_manage.c
@@ -334,6 +334,9 @@ struct lua_plugin_manage_schema *lua_plugin_manage_init(
     utarray_new(new_schema->message_mq_array, &lua_message_mq_icd);
 
     int thread_count = stellar_get_worker_thread_num(st);
+    if (thread_count == 0)
+        /* 无活动线程 */
+        return new_schema;
 #ifdef LUAPLUGIN_BASIC_UNITTEST
     LOGDEBUG("get stellar thread num is %d", thread_count);
 #endif
@@ -597,7 +600,7 @@ void debug_lua_plugin_manage_schema(struct lua_plugin_manage_schema *schema)
     for (int i = 0; i < schema->model_count; ++i)
     {
         printf("debug model[%d]\n", i);
-        printf("array %p, load %d, unload %d, env %d, mark %04x, count %04x\n",
+        printf("array %p, load %d, unload %d, env %d, mark %04x, count %d\n",
                schema->model[i].plugin_array, schema->model[i].load_ref, schema->model[i].unload_ref,
                schema->model[i].private_env_ref, schema->model[i].model_mark, schema->model[i].plugin_count);
         struct lua_plugin *plugin = NULL;
@@ -606,6 +609,7 @@ void debug_lua_plugin_manage_schema(struct lua_plugin_manage_schema *schema)
             printf("%d, %d, %d\n", plugin->plugin_id, plugin->ctx_new_ref, plugin->ctx_free_ref);
         }
     }
+    printf("schema total plugin count is %d\n", schema->plugin_count);
 
     printf("***** end of debug one lua schema *****\n\n");
 }