diff --git a/.github/workflows/maven.yaml b/.github/workflows/maven.yaml
index 3cd9887..73400c2 100644
--- a/.github/workflows/maven.yaml
+++ b/.github/workflows/maven.yaml
@@ -35,4 +35,5 @@ jobs:
 
       # Optional: Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive
       - name: Submit Dependency Snapshot
+        if: github.event.pull_request.head.repo.full_name == github.repository
         uses: advanced-security/maven-dependency-submission-action@v5
diff --git a/src/main/java/pro/cloudnode/smp/enchantbookplus/ConfigEnchantmentEntry.java b/src/main/java/pro/cloudnode/smp/enchantbookplus/ConfigEnchantmentEntry.java
index a305ac3..55d442b 100644
--- a/src/main/java/pro/cloudnode/smp/enchantbookplus/ConfigEnchantmentEntry.java
+++ b/src/main/java/pro/cloudnode/smp/enchantbookplus/ConfigEnchantmentEntry.java
@@ -11,6 +11,7 @@
 import java.util.Map;
 import java.util.Objects;
 import java.util.OptionalInt;
+import java.util.logging.Level;
 import java.util.stream.Collectors;
 
 @NullMarked
@@ -40,6 +41,21 @@ public class ConfigEnchantmentEntry {
      */
     protected final boolean multiplyCostByLevel;
 
+    /**
+     * Whether to allow custom enchantments from other plugins.
+     * Set this from the main plugin class.
+     */
+    private static boolean allowCustomEnchantments = true;
+
+    /**
+     * Set whether custom enchantments are allowed.
+     *
+     * @param allow true to allow custom enchantments, false to only use vanilla enchantments
+     */
+    public static void setAllowCustomEnchantments(final boolean allow) {
+        allowCustomEnchantments = allow;
+    }
+
     /**
      * @param name Name of the enchantment.
      * @param maxLevel Maximum level of the enchantment.
@@ -194,8 +210,13 @@ public final OptionalInt getMaxLevel() {
             return OptionalInt.empty();
         }
 
+        final Enchantment enchantment = getEnchantment();
+        if (enchantment == null) {
+            return OptionalInt.empty();
+        }
+
         if (maxLevelRelative) {
-            return OptionalInt.of(getEnchantment().getMaxLevel() + maxLevel);
+            return OptionalInt.of(enchantment.getMaxLevel() + maxLevel);
         }
 
         return OptionalInt.of(maxLevel);
@@ -218,8 +239,12 @@ public final boolean getMultiplyCostByLevel() {
     /**
      * Get enchantment
      */
-    public final Enchantment getEnchantment() {
-        return Objects.requireNonNull(Registry.ENCHANTMENT.get(NamespacedKey.minecraft(name)));
+    public final @Nullable Enchantment getEnchantment() {
+        final Enchantment enchantment = Registry.ENCHANTMENT.get(NamespacedKey.minecraft(name));
+        if (enchantment == null) {
+            java.util.logging.Logger.getLogger("EnchantBookPlus").warning("Enchantment '" + name + "' not found in registry");
+        }
+        return enchantment;
     }
 
     /**
@@ -250,7 +275,18 @@ public static AllConfigEnchantmentEntry from(final ConfigEnchantmentEntry config
             );
         }
 
-        public ConfigEnchantmentEntry enchant(final Enchantment enchantment) {
+        /**
+         * Create a ConfigEnchantmentEntry for a specific enchantment.
+         * Returns null if the enchantment is custom and custom enchantments are disabled.
+         *
+         * @param enchantment The enchantment to create an entry for
+         * @return A new ConfigEnchantmentEntry, or null if skipped
+         */
+        public @Nullable ConfigEnchantmentEntry enchant(final Enchantment enchantment) {
+            // Skip custom enchantments if they are not allowed
+            if (!allowCustomEnchantments && !enchantment.getKey().getNamespace().equals(NamespacedKey.MINECRAFT)) {
+                return null;
+            }
             return new ConfigEnchantmentEntry(
                     enchantment.getKey().getKey(),
                     this.maxLevel,
@@ -260,4 +296,4 @@ public ConfigEnchantmentEntry enchant(final Enchantment enchantment) {
             );
         }
     }
-}
+}
\ No newline at end of file
diff --git a/src/main/java/pro/cloudnode/smp/enchantbookplus/EnchantBookPlus.java b/src/main/java/pro/cloudnode/smp/enchantbookplus/EnchantBookPlus.java
index 695d27e..f796db8 100644
--- a/src/main/java/pro/cloudnode/smp/enchantbookplus/EnchantBookPlus.java
+++ b/src/main/java/pro/cloudnode/smp/enchantbookplus/EnchantBookPlus.java
@@ -55,7 +55,19 @@ public Optional<ConfigEnchantmentEntry> getConfigEnchantment(final Enchantment e
                 .filter(c -> c.isEnchantment(enchantment))
                 .findFirst();
 
-        return entry.isEmpty() ? getAllConfigEnchantment().map(a -> a.enchant(enchantment)) : entry;
+        if (entry.isPresent()) {
+            return entry;
+        }
+
+        // If "ALL" entry exists, create a specific entry for this enchantment
+        final Optional<ConfigEnchantmentEntry.AllConfigEnchantmentEntry> allEntry = getAllConfigEnchantment();
+        if (allEntry.isPresent()) {
+            final ConfigEnchantmentEntry specificEntry = allEntry.get().enchant(enchantment);
+            // If the enchantment was skipped (null), return empty
+            return Optional.ofNullable(specificEntry);
+        }
+
+        return Optional.empty();
     }
 
     /**
@@ -64,6 +76,10 @@ public Optional<ConfigEnchantmentEntry> getConfigEnchantment(final Enchantment e
     void reload() {
         reloadConfig();
 
+        // Load the allow-custom-enchantments setting from config
+        final boolean allowCustom = getConfig().getBoolean("allow-custom-enchantments", true);
+        ConfigEnchantmentEntry.setAllowCustomEnchantments(allowCustom);
+
         final List<ConfigEnchantmentEntry> enchants;
 
         try {
@@ -100,4 +116,4 @@ public void onDisable() {
         allConfigEnchantment = null;
         configEnchantments.clear();
     }
-}
+}
\ No newline at end of file
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index 80ee22a..ada5b85 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -1,3 +1,8 @@
+# Enable or disable processing of custom enchantments from other plugins (e.g., ExcellentEnchants)
+# If disabled, only vanilla Minecraft enchantments will be affected by the "ALL" rule
+# Set to true to allow custom enchantments, false to only use vanilla enchantments
+allow-custom-enchantments: false
+
 # List of enchantments for which to enable upgrading above the vanilla max levels using an anvil.
 enchantments:
     # Enchantment name (same as in the /enchant command).