This speaks of sinful people being unable to obey God as if they were people who were physically dead. (See: [[rc://en/ta/man/translate/figs-metaphor]])
The words "trespasses" and "sins" have similar meanings. Paul uses them together to emphasize the greatness of the people's sin. They can also be translated using the verbs "trespass" and "sin," respectively. Alternate translation: "because you had trespassed and sinned" (See: [[rc://en/ta/man/translate/figs-doublet]] and [[rc://en/ta/man/translate/figs-abstractnouns]])