If you are experiencing a spinning or frozen ship when trying to start the game it may be because of a bug that has been identified.
Here is a post on the official forums:
IMPORTANT! Please don't apply decals
Hello Commanders!
UPDATE: if your ship already has a decal applied and you can still access your save, you should be fine to leave it - it's the act of applying a decal that causes the bug to strike.
We've uncovered a bug that will make your save inaccessible if you apply a decal.
Your save isn't lost, but you won't be able to access it (and thus play the game).
We're working on a fix that should go out either later today or tomorrow. So if you have found yourself in the situation where you can't load your game, hold fast; we will fix all affected saves when we fix the bug.
And until we confirm the fix has gone live, please avoid applying decals.
Thanks for bearing with us!
Last edited by Sandro Sammarco; Today at 12:20 PM.
Here's a link to the page:
https://forums.frontier.co.uk/showthread.php?t=73233