What is the ruling on working, earning, and receiving a monthly salary from the company Joysheall, a British advertising company that relies on network marketing, where one registers and pays a subscription fee ($60 or $240), then subscribers post advertisements for the company on Facebook in exchange for weekly profits, in addition to other profits from inviting new members (team building), balance profits, lectures, and point accumulation?

It is permissible to profit from publishing advertisements if they are for something permissible, and the wage is known. It is not permissible to advertise for something forbidden, because that is spreading evil. It is not permissible to enter into a transaction if it requires paying subscription fees, due to the presence of usury (riba) and gambling (maysir) in it, as it involves exchanging money for money with uncertainty (gharar) and probability. Maysir is a guaranteed loss and a probable gain.