SERVER - game error

[brunolustosa]

Got this error.
I had just cast Saheeli's Artistry (both modes), then it crashed:

12:06 AM, T23.M1: XLust casts Saheeli's Artistry [625] (mode 1) targeting Sword of the Animist [b71] (create copy of that) (mode 2) targeting Sphinx of the Second Sun [049] (create copy of that, artifact type) from hand
12:06 AM, T23.M1: XLust creates a Sword of the Animist [1c9] token
12:06 AM, T23.M1: Auto-restored to T23.M1 due game error: java.lang.ClassCastException: mage.game.permanent.token.EmptyToken cannot be cast to mage.game.permanent.Permanent

Error type: SERVER - game error

Client version: 1.4.57-V2 (build: 2025-07-25 13:53)
Java version: 1.8.0_201
Default charset: UTF-8

Game end on critical error: mage.MageException: Error in unit tests

mage.MageException: Error in unit tests
Server version: 1.4.57-V2 (build: 2025-07-25 13:53)
Stack trace:
mage.game.GameImpl.playPriority(GameImpl.java:1816)
mage.game.turn.Step.priority(Step.java:73)
mage.game.turn.Phase.playStep(Phase.java:205)
mage.game.turn.Phase.play(Phase.java:91)
mage.game.turn.Turn.play(Turn.java:132)
mage.game.GameImpl.playTurn(GameImpl.java:1183)
mage.game.GameImpl.play(GameImpl.java:1090)
mage.game.GameImpl.start(GameImpl.java:1066)
mage.server.game.GameWorker.call(GameWorker.java:35)
mage.server.game.GameWorker.call(GameWorker.java:16)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)