DGT chessboard

I can't connect my DGT Chessboard with lichess platform. Is it some mistake or lichess resigned from DGT application?

I believe that the DGT auto sensory board is permitted according to the sites TOS.

isn't DGT only on chess.com/?

DGT is allowed and supported. See the "Play" menu above.

However there appear to be some issues.

DGT boards were designed for professional chess. Online play is secondary and has been plagued by unreliable firmware since 2000 when I got my first board and used it to play at the internet chess club.