Hello Wali
Take a look at the configuration of any and all tunnel interfaces on your vEdge device. The tunnel interfaces can be assigned “colors” which are used to distinguish between the WAN tunnels being created. It looks like you have more than one tunnel interface with the color “default” (which is the default color when no other color is assigned). This is not allowed since there will be no way to distinguish between them, unless the colors are different.
Do you have more than one VPN 0 on your vEdge device? The problem here is not specific to the vBond configuration but to the colors on the tunnel interfaces. For more information about configuring the color on tunnel interfaces take a look at the vEdge onboarding lesson, and specifically, at the VPN0 underlay network section that details how to configure colors:
I hope this has been helpful!
Laz