element can not be found – Rubin Shrestha

hi I am new to MFTF so I automated a test case but when the file is uploaded and it should click to add that file to the cart, the xpath can’t be found even it is present and I tried different xpath and css for that elelenemt but still no luck what it could be I already switched to iframe and it enteract with all other elelements and I applied enough wait time but still can not be found