Suppose We (The Flying Crooked series Book 1) by Geoff Nelder

When the Earth spaceship, Suppose We, crashlands on a planet they’re in trouble. The locals are so in advance of humans the crew find themselves ignored yet they need help. Luckily, their ship’s computer knows of a secret mission payload that will help the local beings with their own disaster. “Wry humour and decades of publishing experience make this vegan science fiction unique and a pleasure to read.”