Is the husband's divorce of his second wife considered an injustice to her, after it became clear that her first divorce was not documented, and because of a disturbing dream his mother had?

It is permissible to search for a wife online, provided that Islamic legal controls are observed, but it is fraught with risks.

Marriage should not have taken place until her divorce papers from the first husband were obtained.

A woman should not be divorced because of a dream, and divorce is neither forbidden nor unjust, and you must fulfill her rights.