Fix timelog in CrashDetector

SpigotCore_Main/src/de/steamwar/core/CrashDetector.java

@@ -61,11 +61,11 @@ public class CrashDetector {
         while (run) {
             long curTime = System.nanoTime();
             if(curTime - 4*TIMEOUT >= lastTick.get()) {
-                SWException.log("Server did not recover in " + (curTime - lastTick.get()) + "ms, unclean server stop", "");
+                SWException.log("Server did not recover in " + ((curTime - lastTick.get()) / 1000000.0) + "ms, unclean server stop", "");
                 hardStop();
             } else if(curTime - TIMEOUT > lastMessage.get()) {
                 if(mainThread.isAlive()) {
-                    SWException.log("Server hung for " + (curTime - lastTick.get()) + "ms", Arrays.stream(mainThread.getStackTrace()).map(StackTraceElement::toString).collect(Collectors.joining("\n")));
+                    SWException.log("Server hung for " + ((curTime - lastTick.get()) / 1000000.0) + "ms", Arrays.stream(mainThread.getStackTrace()).map(StackTraceElement::toString).collect(Collectors.joining("\n")));
                 } else {
                     SWException.log("Server thread already dead, unclean server stop", "Core enabled: " + Core.getInstance().isEnabled());
                     hardStop();