Batman-adv error bat0 interface on TP-Link Archer C50

Hello everyone,

I have an issue while configuring Batman-adv on my TP-Link Archer C50.
I install batman-adv with the package manager and configure my interface, I have no trouble on my TP-Link TL-WR1043ND V2 and Batman-adv seems ok, but when i configure the same on my Archer C50 and check with 'batctl if' I got the following error:

error - interface bat0 is not present or not a batman-adv interface

For configuration, I use the following info:

https://www.open-mesh.org/projects/batman-adv/wiki/Batman-adv-openwrt-config

I haven't found any solution, but if someone can help me on this, it would be much appreciated!