Headlights have been knocked out of alignment due to falling tree

Check out the photo, the weird screw that's circled...

fuse problem or check the headlight bulbs double check wiring connections to.

the running lights and headlights, while they may be on a single switch mechanically, they are actually separate circuits, with two or three separate fuses.... you need much deeper circuit tracing

check wire's and earth on the unit, if a faulty earth this will cause lights to do this,

Fuse/relay under hood..possible that both lights went out..make sure filaments I'm bulb are not blown

Have to get yourself some wiring diagrams to figure that out

Do the fog lights come on while the park lights only are on? This is how they are supposed to operate. fog lights and headlights are not supposed to be on together

did you try the instrument light adjustment?

Avensis Headlight Alignment
How to Adjust Your Headlights YourMechanic Advice
2010 Headlight Adjustment
Toyota Workshop Owners Manuals Free Repair Documents
Toyota Avensis 2003 2004 Service and Repair Manual ISO

Park your car on a level ground 30 feet from a wall and measure the height from the ground to the bulb and mark on a wall (do this for highs beams and low beams if the bulbs are separate, if highs and lows are the same bulb, only do it for the lows)

For Low Beams: If the headlights read VOR, then aim the brightest part or cutoff part just below the mark on the wall. If it says VOL or nothing, aim them 2 inches below the mark on the wall.

For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.

The adjustment screws/nuts should be located either on the top of the headlamp assembly, behind the headlamp assembly, or near the frame rail by the radiator support.

You will have vertical adjustment screws for each independent beam (separate highs and separate lows, but will be same screw if highs and lows are the same bulb). You may also have additional horizontal adjustment screws as well