Fixed rare errors

core/src/com/unciv/ui/utils/ToastPopup.kt

@@ -1,5 +1,6 @@
 package com.unciv.ui.utils
 
+import com.badlogic.gdx.Gdx
 import kotlin.concurrent.thread
 
 //Its a popUp which will close itself after a given amount of time
@@ -17,7 +18,7 @@ class ToastPopup (message: String, screen: CameraStageBaseScreen, time: Long = 1
     private fun startTimer(){
         thread (name = "ResponsePopup") {
             Thread.sleep(visibilityTime)
-            this.close()
+            Gdx.app.postRunnable { this.close() }
         }
     }
 

core/src/com/unciv/ui/worldscreen/mainmenu/DropBox.kt

@@ -42,6 +42,11 @@ object DropBox {
                 val reader = BufferedReader(InputStreamReader(errorStream))
                 println(reader.readText())
                 return null
+            } catch (error: Error) {
+                println(error.message)
+                val reader = BufferedReader(InputStreamReader(errorStream))
+                println(reader.readText())
+                return null
             }
         }
     }