Complex sentence: Lacking the funds to record a studio album their debut album was collection of live recordings from 1986 but soon in 1987 they released their first studio album called "Sonho Maníaco".
Split into simpler sentences: Lacking the funds to record a studio album, their debut album, which was released in 1986 consisted of a collection of live recordings. A year later they released their first studio album called "Sonho Maníaco".