I'm a noob, please bear with me.
I'm trying to mine Titan. I have sent automated mines up, and they're producing nicely. I have built a few mass drivers and am trying to send one up there, but when I try to get it on a cargo ship I get the message "Failed to load Mass Driver Earth. Please reschedule orders"
The cargo ship is 52000t, with a cargo capacity of 30000t.