Declarations are often split across the pack. Add the front and the back and they are checked together as one label. One photo is fine if everything is on one side.
Pack type only matters for 330 ml drinks, which are a standard size in cans only.
The server has just started and is loading its text-reading models (about a minute). Pasted-text checks work now; a photo check will simply wait until it is ready.
Choose a category and add a label to see the report.