Hello,
“When I edit this link https://tekquimicas.artico.website/cart/ the word cart in Spanish that page appears in 404” – go to Pages > https://prnt.sc/fOJRYGZ1fvtI > change Slug > Save > click on View page
“when I click on the button view cart how do I edit that word and edit the button link? since I see that it is not manageable.” – check the link now, the text of the button can be changed via translation files, as you can see it is already translated, so just change the translation.
Regards