From the link you sent, I got the idea to edit the wp_adsw_ali_meta table using sql , setting the sale price to 0.
UPDATE `wp_adsw_ali_meta` SET `origSalePrice`=0,`origSalePriceMax`=0;
I hope that query would fix it! Thanks!!
I try removing sale price through csv, later the plugin automatically updates the sale price. I don't want the products to be on sale. Help me with this. I can't re-import everything, I store files in Amazon S3 and re-importing costs me. Tell me how to stop the sale.