Imo Two options ? Use seperate battery with LED lights ? Or wire in lights with its own wire ? Can be off inside light circuit as the load is very low with LED lights .

If you join the Avan Facebook group you will probably get your answer there.

G'day Greg,
Firstly welcome to this forum - I hope your time here will be informative, helpful.
Your question - there could be various reasons from a blown fuse, a dry or loose joint, a screw that has entered & broken the feed wire.
You don't say anything about the history - has it worked before? Is the battery, power supply ok?

If you haven't got a multimeter, get one - you can get good, average meters for around $30 from places like Bunnings, Jaycar, other electrical/electronic shops.

ConsumerMan's suggestion is worth following it up.

There is an old saying "KISS" - it's amazing how many of us get caught by making faults dif ftficult!

Yes may find getting outside working may cure ? Fuses ?? Earths !n