What league lashon hara with the problems of future generations? For example if a person makes the lashon hara this sin can be a problem for children or grandchildren of this person? Bringing emotional problems or for kiddushin.
Although lashon hara is a grave offence, and many sources detail its consequences for the offender, there are no sources (to my knowledge) suggesting that it is passed on to future generations in any way, or that it causes emotional problems of some kind or another.
See Orchos Tzadikim, Shaar 25, who mentions that lashon hara is sometimes spoken about an entire family, thereby affecting even future generations.