pay order no eroor. 中文意思应该是:付款凭证无误。
error  无误,无失误,未失策
英[nəʊ ˈerə(r)] 美[noʊ ˈerər]
例句:
We are enclosing the contract covering this transaction in two originals, if no error is found, please counter sign and return one copy to us for our file.
随信寄出有关这次交易的正本合同一式两份,审查无误后请及时会签,然后将其中一份返还我方,供我方存档。