network no longer works

Hello,

I really need your help,
When I wanted to create Vlans and manage them through Pfsens with an l2 switch, I changed my mind and invested in an l3 switch.

I wanted to deactivate pfsens and the proxmox vlan, but since then I can't access proxmox from the network.

I've tried several things but I can't seem to get a network back.

Yet proxmox displays the ip 192.168.0.200 on the connection page.

I'd just like to restore the basic configuration.

Please help me