The word(s) "error" appears 53 time(s) in 53 verse(s) in Quran in Mohsin Khan translation.

(41) Is he whose breast Allah has opened to Islam, so that he is in light from His Lord (as he who is a non-Muslim)? So woe to those whose hearts are hardened against remembrance of Allah! They are in plain error!

(42) That was because you had been exulting in the earth without any right (by worshipping others instead of Allah and by committing crimes), and that you used to rejoice extremely (in your error).

(43) Those who believe not therein seek to hasten it, while those who believe are fearful of it, and know that it is the very truth. Verily, those who dispute concerning the Hour are certainly in error far away.

(44) Can you (O Muhammad صلى الله عليه و سلم) make the deaf to hear, or can you guide the blind or him who is in manifest error?

(45) And whosoever does not respond to Allah's Caller, he cannot escape on earth, and there will be no Auliya' (lords, helpers, supporters, protectors) for him besides Allah (from Allah's punishment). Those are in manifest error.

(46) His companion (Satan - devil)] will say: "Our Lord! I did not push him to transgression, (in disbelief, oppression, and evil deeds) but he was himself in error far astray."

(47) And they said: "A man, alone among us - shall we follow him? Truly then we should be in error and distress (or madness)!"

(48) Verily the Mujrimun (polytheists, disbelievers, sinners, criminals) are in error (in this world) and will burn (in the Hell-fire in the Hereafter).

(49) He it is Who drove out the disbelievers among the people of the Scripture (i.e. the Jews of the tribe of Banu An-Nadir) from their homes at the first gathering. You did not think that they would get out. And they thought that their fortresses would defend them from Allah! But Allah's (Torment) reached them from a place whereof they expected it not, and He cast terror into their hearts so that they destroyed their own dwellings with their own hands and the hands of the believers. Then take admonition, O you with eyes (to see).

(50) He it is Who sent among the unlettered ones a Messenger (Muhammad صلى الله عليه وسلم) from among themselves, reciting to them His Verses, purifying them (from the filth of disbelief and polytheism), and teaching them the Book (this Qur'an, Islamic laws and Islamic jurisprudence) and Al-Hikmah (As-Sunnah: legal ways, orders, acts of worship of Prophet Muhammad صلى الله عليه وسلم). And verily, they had been before in manifest error;