My dog is obsessed with this part of the kitchen?

My dog, Freddie, has recently been obsessing over a certain part of our kitchen. He’s 6 years old and hasn’t done this before.

To try and explain the layout: you walk in and you face the washing machine first, right next to it are the dishwasher and a cupboard. Along this line, Freddie cannot resist sniffing, whining, and scratching at the bottom of it, as if he’s trying to get to something.

🥲 Personally, I’m a little creeped out lmao, just in case there’s a whole family of spiders behind there, or any mice.

I’m posting here to see what others think.. Spiders? Mice? Or potentially is there a weird smell coming from the machine/dishwasher? Anything else it could be?

Additional context that may be helpful: Freddie is quite an anxious dog. I’ve also noticed he gets obsessive if he spots a bug and its difficult to get him to stop trying to find it. So much so he keeps thinking patterns in the wall or blankets are bugs. So once Freddie spots something unusual, he cannot stop thinking about it.

How can I help deter Freddie away from it so he stops getting panicked and distressed, as well as figuring it out the best I can without ripping apart the kitchen? 😅