Attempt to decrease pressure in well 8-20_inj below lower limit of 50 kPa The injector can not operate on a specified constraint – Rate may not be honored

Attempt to decrease pressure in well 8-20_inj below lower limit of 50 kPa
The injector can not operate on a specified constraint – Rate may not be honored
老师您好，请问蒸汽吞吐设置时出现这种问题该如何解决