VPLS over GRE Tunnel

[NUSFETLEN]

I have created the below network setup, trying to get VPLS running over GRE P-P tunnel. The GRE Tunnel is Up. MPLS seems working OK, I can ping from 172.16.18.0 to 172.16.160.0. However, VPLS comes Up (VC is Up) but doesn't forward traffic between sites withing VLAN 14 and VLAN 97. The "sh mpls forwarding" shows no outgoing interface for vfi 14 and vfi 97. 

Do I miss anything in the config? 

[MHM Cisco World]

https://community.cisco.com/t5/metro/spanning-packets-and-vpls/td-p/1880178 <<- this check

[NUSFETLEN]

This source suggests to disable STP on the VPLS router. I've tried it but failed. This warning might mean the hardware doesn't support BPDU through VPLS: 

% % Command rejected - BPDU pseudowire config not allowed

I had the same on the real hardware (C1111-8P). Perhaps I should consider some other hardware.