What is the ruling on breaking up the letters of some words in a verse when writing it? Should one advise whoever experiences this due to a malfunction or defect on the website? And must he delete the entire website if the defect is from it?

This segmentation of the words of the verse is impermissible if done intentionally. If it occurred unintentionally, there is no sin, but the error should be clarified and corrected. They are not required to delete the entire site, but rather to correct the error and write the verses in accordance with the Uthmanic script of the Mushaf. If they are unable to do so, then they should only delete those specific verses.