CLIENT - unhandled error in GUI - NullPointerException

[TroyC24]

Error type: CLIENT - unhandled error in GUI - NullPointerException

Client version: 1.4.55-V3 (build: 2024-12-16 20:14)
Java version: 1.8.0_201
Default charset: UTF-8

NullPointerException - look at server or client logs for more details

Stack trace:
mage.client.table.NewPlayerPanel.playerLoadDeck(NewPlayerPanel.java:43)
mage.client.table.NewPlayerPanel.btnPlayerDeckActionPerformed(NewPlayerPanel.java:168)
mage.client.table.NewPlayerPanel.lambda$initComponents$0(NewPlayerPanel.java:115)
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
java.awt.Component.processMouseEvent(Component.java:6539)
javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
and other 29 lines