Need help with optimize stored procedure

[Dmitriy Grishin]

When updating product photos, a table (`sh_prod_im_`) is created,
after filling which the stored procedure is called.

Stored procedure:

DELIMITER $$
CREATE DEFINER=`root`@`%` PROCEDURE `sync_fl`()
BEGIN
DROP TABLE IF EXISTS `sh_prod_im__`;
ALTER TABLE `sh_prod_im` RENAME TO `sh_prod_im__`;
ALTER TABLE `sh_prod_im_` RENAME TO `sh_prod_im`;
END$$
DELIMITER ;

And i regular see this error in logs:

Table 'sh_prod_im' doesn't exist.

How can i optimize sored procedure or process for fix this error?