отклоняться(и т.п., синоним to wander / to roam / to stray • Why wilt thou err from me? / Keble. • What seemeth to you, if there were to a man an hundred sheep and one of them hath erred. /Wyclif (Matt. xviii. 12).nadyaim)
допустить ошибку(be mistaken or incorrect; make a mistake (Oxford Dictionary) • A judge has erred in a lawsuit involving a fire-damaged mansion (...), a B.C. Court of Appeal judge has ruled. (...) In her most recent application to have that order overturned, Este argued that Justice Francesca Marzari had erred by not recusing herself because she should have been aware of her own bias on the matter. (nsnews.com)ART Vancouver)