The "error" appears only when displaying with Tajweed fonts, between the two first words of this part of the soura: أَلَمْ يُؤْخَذْ عَلَيْهِم مِّيثَـٰقُ ٱلْكِتَـٰبِ أَن لَّا يَقُولُوا۟ عَلَى ٱللَّهِ إِلَّا ٱلْحَقَّ أَلَمْ يُؤْخَذْ عَلَيْهِم مِّيثَـٰقُ ٱلْكِتَـٰبِ There is a white artefact after " أَلَمْ" covering part of the first letter "Ya" in " يُؤْخَذْ" hiding one of its two dots, so that it instead looks like a "Ba". So the actual text is spelled correctly, but there is some html or other visual artefact that is covering 90% of the 1st dot of the "Ya", when seen in a desktop browser. On a mobile one, it looked to me like a genuine spelling mistake.