What is the ruling on marriage and divorce in light of these circumstances and events that have occurred, and is it possible to continue with the marriage and raise the children based on the fatwas of the scholars in his country?

If the trustworthy scholars have issued a fatwa (definition) to you regarding the invalidity of your first marriage contract and the occurrence of only two divorces, then act according to their fatwa and do not pay attention to anyone else. Beware of giving in to obsessive whispers (waswas), and completely disregard them. Seek help from Allah and supplicate to get rid of them.