java.lang.NullPointerException at com.unciv.ui.worldscreen.AlertPopup.(AlertPopup.kt:318) at com.unciv.ui.worldscreen.WorldScreen.update(WorldScreen.kt:450) at com.unciv.ui.worldscreen.WorldScreen.render(WorldScreen.kt:830) at com.badlogic.gdx.Game.render(Game.java:48) at com.unciv.UncivGame.access$render$s2211858(UncivGame.kt:50) at com.unciv.UncivGame$wrappedCrashHandlingRender$1.invoke(UncivGame.kt:89) at com.unciv.UncivGame$wrappedCrashHandlingRender$1.invoke(UncivGame.kt:89) at com.unciv.ui.crashhandling.CrashHandlingExtensionsKt$wrapCrashHandling$1.invoke(CrashHandlingExtensions.kt:17) at com.unciv.ui.crashhandling.CrashHandlingExtensionsKt$wrapCrashHandlingUnit$1.invoke(CrashHandlingExtensions.kt:33) at com.unciv.ui.crashhandling.CrashHandlingExtensionsKt$wrapCrashHandlingUnit$1.invoke(CrashHandlingExtensions.kt:33) at com.unciv.UncivGame.render(UncivGame.kt:392) at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Window.update(Lwjgl3Window.java:387) at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.loop(Lwjgl3Application.java:192) at com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application.(Lwjgl3Application.java:166) at com.unciv.app.desktop.DesktopLauncher.main(DesktopLauncher.kt:87)