diff --git a/storage/spider/mysql-test/spider/bugfix/r/mdev_30727.result b/storage/spider/mysql-test/spider/bugfix/r/mdev_30727.result
index ce8ebdc3966..79a383feb83 100644
--- a/storage/spider/mysql-test/spider/bugfix/r/mdev_30727.result
+++ b/storage/spider/mysql-test/spider/bugfix/r/mdev_30727.result
@@ -1,12 +1,12 @@
 CREATE FUNCTION spider_direct_sql RETURNS INT SONAME 'ha_spider.so';
 SELECT spider_direct_sql ('SELECT * FROM s','a','srv "b"');
-ERROR HY000: Plugin 'SPIDER' is not loaded
+ERROR HY000: Can't initialize function 'spider_direct_sql'; Plugin 'SPIDER' is not loaded
 CREATE FUNCTION spider_bg_direct_sql RETURNS INT SONAME 'ha_spider.so';
 SELECT spider_bg_direct_sql ('SELECT * FROM s','a','srv "b"');
-ERROR HY000: Plugin 'SPIDER' is not loaded
+ERROR HY000: Can't initialize function 'spider_bg_direct_sql'; Plugin 'SPIDER' is not loaded
 CREATE FUNCTION spider_copy_tables RETURNS INT SONAME 'ha_spider.so';
 SELECT spider_copy_tables ('t', '0', '0');
-ERROR HY000: Plugin 'SPIDER' is not loaded
+ERROR HY000: Can't initialize function 'spider_copy_tables'; Plugin 'SPIDER' is not loaded
 CREATE FUNCTION spider_flush_table_mon_cache RETURNS INT SONAME 'ha_spider.so';
 SELECT spider_flush_table_mon_cache ();
 spider_flush_table_mon_cache ()
diff --git a/storage/spider/mysql-test/spider/bugfix/t/mdev_30727.test b/storage/spider/mysql-test/spider/bugfix/t/mdev_30727.test
index e1d917e7147..ebd08edce24 100644
--- a/storage/spider/mysql-test/spider/bugfix/t/mdev_30727.test
+++ b/storage/spider/mysql-test/spider/bugfix/t/mdev_30727.test
@@ -1,13 +1,13 @@
 CREATE FUNCTION spider_direct_sql RETURNS INT SONAME 'ha_spider.so';
---error ER_PLUGIN_IS_NOT_LOADED
+--error ER_CANT_INITIALIZE_UDF
 SELECT spider_direct_sql ('SELECT * FROM s','a','srv "b"');
 
 CREATE FUNCTION spider_bg_direct_sql RETURNS INT SONAME 'ha_spider.so';
---error ER_PLUGIN_IS_NOT_LOADED
+--error ER_CANT_INITIALIZE_UDF
 SELECT spider_bg_direct_sql ('SELECT * FROM s','a','srv "b"');
 
 CREATE FUNCTION spider_copy_tables RETURNS INT SONAME 'ha_spider.so';
---error ER_PLUGIN_IS_NOT_LOADED
+--error ER_CANT_INITIALIZE_UDF
 SELECT spider_copy_tables ('t', '0', '0');
 
 # spider_flush_table_mon_cache does not require spider init to function
diff --git a/storage/spider/spd_copy_tables.cc b/storage/spider/spd_copy_tables.cc
index 1783fe7374b..524ad7dd9e9 100644
--- a/storage/spider/spd_copy_tables.cc
+++ b/storage/spider/spd_copy_tables.cc
@@ -1154,9 +1154,6 @@ error:
   DBUG_RETURN(0);
 }
 
-#undef my_error
-extern "C" void my_error(unsigned int nr, unsigned long MyFlags, ...);
-
 my_bool spider_copy_tables_init_body(
   UDF_INIT *initid,
   UDF_ARGS *args,
@@ -1165,7 +1162,7 @@ my_bool spider_copy_tables_init_body(
   DBUG_ENTER("spider_copy_tables_init_body");
   if (!spider_hton_ptr)
   {
-    my_error(ER_PLUGIN_IS_NOT_LOADED, MYF(0), "SPIDER");
+    strcpy(message, "Plugin 'SPIDER' is not loaded");
     goto error;
   }
   if (args->arg_count != 3 && args->arg_count != 4)
diff --git a/storage/spider/spd_direct_sql.cc b/storage/spider/spd_direct_sql.cc
index 4f6bc0a4405..524e8b7443a 100644
--- a/storage/spider/spd_direct_sql.cc
+++ b/storage/spider/spd_direct_sql.cc
@@ -1789,9 +1789,6 @@ error:
   DBUG_RETURN(0);
 }
 
-#undef my_error
-extern "C" void my_error(unsigned int nr, unsigned long MyFlags, ...);
-
 my_bool spider_direct_sql_init_body(
   UDF_INIT *initid,
   UDF_ARGS *args,
@@ -1802,7 +1799,7 @@ my_bool spider_direct_sql_init_body(
   DBUG_ENTER("spider_direct_sql_init_body");
   if (!spider_hton_ptr)
   {
-    my_error(ER_PLUGIN_IS_NOT_LOADED, MYF(0), "SPIDER");
+    strcpy(message, "Plugin 'SPIDER' is not loaded");
     goto error;
   }
   if (args->arg_count != 3)