Is earning money from activating YouTube ads permissible if they include ads for semi-naked girls or promote corrupting things?

It is not permissible to earn money from forbidden advertisements. If it is possible to control the advertisements and remove the forbidden ones, then there is no harm. Otherwise, it is not permissible. Promoting advertisements and profiting from them is permissible if the advertised matters are permissible and the advertisement does not contain any Shariah-prohibited elements. However, if it is not possible to control them and prevent forbidden advertisements, with a strong presumption of their presence, then it is not permissible to advertise and profit from them at that time.