diff --git a/common/src/main/java/ctbrec/Config.java b/common/src/main/java/ctbrec/Config.java
index 1bf2ef51..b9ad99da 100644
--- a/common/src/main/java/ctbrec/Config.java
+++ b/common/src/main/java/ctbrec/Config.java
@@ -190,7 +190,7 @@ public class Config {
     private void convertChaturbateModelNamesToLowerCase() {
         final String CTB = "chaturbate.com";
 
-        // convert mode notes
+        // convert model notes
         Map<String, String> convertedModelNotes = new HashMap<>();
         getSettings().modelNotes.forEach((key, value) -> {
             if (key.contains(CTB)) {
@@ -211,16 +211,21 @@ public class Config {
         getSettings().modelPortraits.putAll(convertedModelPortraits);
 
         // convert model groups
-        getSettings().modelGroups.forEach(mg -> mg.setModelUrls(mg.getModelUrls().stream().map(url -> url.contains(CTB) ? url.toLowerCase() : url)
+        getSettings().modelGroups.forEach(mg -> mg.setModelUrls(mg.getModelUrls().stream()
+                .filter(Objects::nonNull)
+                .map(url -> url.contains(CTB) ? url.toLowerCase() : url)
                 .collect(Collectors.toList()))); // NOSONAR - has to be mutable
 
         // convert ignored models
-        getSettings().ignoredModels = getSettings().ignoredModels.stream().map(url -> url.contains(CTB) ? url.toLowerCase() : url)
+        getSettings().ignoredModels = getSettings().ignoredModels.stream()
+                .filter(Objects::nonNull)
+                .map(url -> url.contains(CTB) ? url.toLowerCase() : url)
                 .collect(Collectors.toList()); // NOSONAR - has to be mutable
 
         // change the model objects
         getSettings().models.stream()
                 .filter(ChaturbateModel.class::isInstance)
+                .filter(m -> m.getUrl() != null)
                 .forEach(m -> {
                     m.setDisplayName(m.getName());
                     m.setName(m.getName().toLowerCase());
@@ -228,6 +233,7 @@ public class Config {
                 });
         getSettings().recordLater.stream()
                 .filter(ChaturbateModel.class::isInstance)
+                .filter(m -> m.getUrl() != null)
                 .forEach(m -> {
                     m.setDisplayName(m.getName());
                     m.setName(m.getName().toLowerCase());