PPPoE Disconnect and Connect out interfaces

Please I need Help…
A portion of my pppoe customers are falling and rising. With the message in the logs:

PPPoE connection from B0:95:75:19:73:55 was already active - closing previous one…

There are several messages like this, but there are no other devices with the same MAC. This started yesterday afternoon, I had never made that mistake.

Customers with the problem are all on the same PON as an OLT, but not all.
WhatsApp Image 2020-12-29 at 20.44.32.jpeg