What is the ruling on my work as a theater specialist and the salary I receive, given that I am present in the palace during theater groups' rehearsals without entering the theater with them, and outside of rehearsal times I am in my office?

Plays are usually not free of unlawful elements. Since your work involves assisting in the production of these plays, your work is impermissible, due to its being cooperation in sin and transgression. Consequently, your salary is unlawful, and you must leave the aforementioned work. You are not permitted to remain in it except out of necessity or a need that is considered equivalent to necessity, while donating any amount exceeding your needs and diligently searching for another permissible job.