Expresses that one cannot afford to do something; 'cannot', 'must not', 'not allowed to'.
Long explanation:
The ~わけにはいかない grammar point is used to express that one cannot afford to do something or that something must not be done. It emphasizes a sense of responsibility, obligation, or social pressure. The formation differs depending on whether it is used with a verb, い-adjective, な-adjective, or noun.