Unable to ping L2 SW on other side using Unifi AirFiber P-2-P

Hello! I am running into this problem trying to ping & SSH to the other Cisco switch. I have two Unifi AirFiber setup as Point-2-Point to connect both buildings together. I have a Cisco 2960x on the new building set up as a Layer 2 and using the command "IP default-gateway" (the gateway of the switch configured as an L3). I can ping both Unifi AirFiber IP address, I can see the Unifi controller and Unifi WAPs, but I cannot ping or SSH to the switch using the IP address on the VLAN (VLAN-ID 93 in this case). Both network devices are in the same network scheme, which is 10.1.20.X/24.

Do I need to put the switch on the new building as an L3 and put the static IP address? 

Thanks!