New opnsense setup, output errors.

[Anvariel]

I've recently setup opnsense as my router after having my old unifi USG die. Running in Proxmox on an intel nuc host, 1 ethernet for LAN and Lenovo USB to ethernet for WAN. VM has 4 cores, 4gb ram, 40gb ssd. I'm seeing outbound errors on the WAN interface only, something like maybe 10-20/hr. I'm not quite sure if this is an issue, or how to further examine what the cause of them might be.  Attached screenshot of interface statistics.