You mention on your PM that you entered the barcode again, i think this is where you are going wrong. You do not need to enter the barcode again.
Login to the website as per normal, make sure you select English at the top right, go to the aquarium administration page and click the "Show" button next to your aquarium profile, on the next page where it says Evaluations for ICP-OES: select the most recent sample from the drop down and click "Show" again. Now you will see your results.