Do not try to load null PlayerStorage data

Author: WolfyScript

core/src/main/java/com/wolfyscript/utilities/bukkit/persistent/player/PlayerStorage.java

@@ -119,15 +119,18 @@ public <T extends CustomPlayerData> Optional<T> getData(Class<T> dataType) {
                 var objectMapper = core.getWolfyUtils().getJacksonMapperUtil().getGlobalMapper();
                 org.bukkit.NamespacedKey key = dataID.bukkit();
                 if (dataContainer.has(key, PersistentDataType.STRING)) {
-                    try {
-                        return objectMapper.reader(new InjectableValues.Std()
-                                        .addValue(WolfyCoreBukkit.class, core)
-                                        .addValue(UUID.class, playerUUID)
-                                )
-                                .forType(CustomPlayerData.class)
-                                .readValue(dataContainer.get(key, PersistentDataType.STRING));
-                    } catch (JsonProcessingException e) {
-                        e.printStackTrace();
+                    String jsonData = dataContainer.get(key, PersistentDataType.STRING);
+                    if (jsonData != null) {
+                        try {
+                            return objectMapper.reader(new InjectableValues.Std()
+                                            .addValue(WolfyCoreBukkit.class, core)
+                                            .addValue(UUID.class, playerUUID)
+                                    )
+                                    .forType(CustomPlayerData.class)
+                                    .readValue(jsonData);
+                        } catch (JsonProcessingException e) {
+                            e.printStackTrace();
+                        }
                     }
                 }
                 return null;