diff --git a/src/main/java/me/kavin/piped/ServerLauncher.java b/src/main/java/me/kavin/piped/ServerLauncher.java
index d3be310..8f96933 100644
--- a/src/main/java/me/kavin/piped/ServerLauncher.java
+++ b/src/main/java/me/kavin/piped/ServerLauncher.java
@@ -289,7 +289,7 @@ public class ServerLauncher extends MultithreadedHttpServerLauncher {
 
     private @NotNull HttpResponse getErrorResponse(Exception e) {
 
-        if (e instanceof ExecutionException)
+        if (e.getCause() != null && e instanceof ExecutionException)
             e = (Exception) e.getCause();
 
         if (!(e instanceof AgeRestrictedContentException || e instanceof ContentNotAvailableException))