ShipRocket.zip\ShipRocket\Resources\views
@exo i tested ,but it is ok ,please make sure your api information is right. and thanks submit shiprocket 1.3.1 in thread for everyone.
It doesn't have a code associated with the front checkout page.
you can see files in ShipRocket.zip\ShipRocket\Resources\views.
check your script .which plugin have "shipment_time"