Need help with pfsense routing for homelab project

I need a bit of help with me pfsense homelab project. I have built a isolated network with pfsense. but I can not get the routing right. I have DNS/DC on xxx.168.16.xxx and it can ping other subnets but it can not ping the app server. How can I fix this. I have my static routes setup right on the routers. but nothing can go through the pfsense. I can go into pfsense and ping the app server. any help will be most welcome.

You might want to have a look at your Reserved Networks normally it blocks 10.x.x.x on the other side of the WAN.

what IP range would I use. I thought about making it whatever since everything isnt connected to the internet.

No i mean look under your interfaces, inspect your Reserved Networks checkboxes.

done no change, problem remains