1. Instructions that are not correct, unclear, or cannot be executed due to errors or improper formatting
The system rejected the request due to invalid instructions.
O sistema rejeitou a solicitação devido a instruções inválidas.
2. Commands or directives that do not comply with required standards or specifications
The programmer received invalid instructions that caused the application to crash.
O programador recebeu instruções inválidas que causaram o travamento da aplicação.