the router not responding to PPP request

hello,

Why is my ME60 router not responding to the PPP request ?  what is missing in the attached config ?

<ME60>debugging ppp all interface GigabitEthernet 4/0/0

Oct 27 2021 19:08:00.710.1 ME60 PPP/7/debug2:Slot=4;

  [PPP DBG]TS Receive pppoe packet, source_blade: 12, source_port: 0, vland_id: 2, l3_stake: 26, main_IfIndex: 0x7, ucType: 0

Oct 27 2021 19:08:00.710.2 ME60 PPP/7/debug2:Slot=4;

  [PPP DBG]PPP_Shell_PktOutput send to self