Game Engine Error with CEC Duskull

While I was playing, I got an error while I was searching CEC Duskull with Quick Ball. Oddly enough, this error doesnt appear when searching other Pokemon.

Game:
● Game starting

● Game type: QuickPlay Ranked

● Game format: Expanded

● Battle started between GyaRadioactive and 230!

● Coin flip result: HEADS

● 230 will start

● Both players took 1 mulligans.

● Game setup complete

● Between turns

● Turn 1 begins

● 230 drew 1 card

● 230 played Cherish Ball.

● Put [Arceus & Dialga & Palkia-GX (CEC 220)] to Hand

● 230 has shuffled deck.

● Put Arceus & Dialga & Palkia-GX onto bench

● 230 played Cherish Ball.

● Put [Dedenne-GX (UNB 219)] to Hand

● 230 has shuffled deck.

● Dedenne-GX has used Dedechange

● Sonia (RCL 192) was discarded

● Nest Ball (SUM 158) was discarded

● Psychic Energy (SSH 217) was discarded

● Switch (SSH 183) was discarded

● 230 drew 6 cards

● Put Dedenne-GX onto bench

● Attached a Metal Energy (SSH 218) to Arceus & Dialga & Palkia-GX.

● Between turns

● Turn 2 begins

● GyaRadioactive drew 1 card

● GyaRadioactive played Quick Ball.

● Field Blower (GRI 125) was discarded

● Put [Duskull (CEC 83)] to Hand

● GyaRadioactive has shuffled deck.

● Game Engine Error!

● 230 disconnected, waiting 15 seconds before ending game.

● Game Engine Error!

● 230 did not return, game ends.

● GyaRadioactive wins the game! Opponent has left