Headlight, taillight, horn - doesn’t work

[Natrude]

Hi! Removed the tail tidy for selling the bike but now some main electrical won’t work. It’s a Dt125r 02?. I’ve been trying to look for bad connections but can’t really find anything obvious. Rear earth and brake wires work but not the taillight (blue one). Tested with multimeter. Also the neither the headlight nor the horn works. Everything worked perfectly til today.
Imgur gallery.
Any help would be appreciated!

[Calum]

You checked the simple stuff first like the fuse?

[Natrude]

@Calum
Yeah checked the fuse at the battery. Don’t know if there are any others?