SOLVED THREAD BUG

Needed a thread safe alloc. Will need to update other part as I just did
parseEntities and deleteEntities

src/dataStructure/UUIDFileIndex.zig

@@ -39,6 +39,10 @@ pub fn get(self: UUIDIndexMap, uuid: UUID) ?usize {
     return self.map.get(uuid);
 }
 
+pub fn reset(self: *UUIDIndexMap) void {
+    _ = self.arena.reset(.free_all);
+}
+
 test "Create empty UUIDIndexMap" {
     const allocator = std.testing.allocator;
 

src/dataStructure/additionalData.zig

@@ -31,6 +31,18 @@ pub fn addMember(self: *AdditionalData, name: []const u8, index: usize) ZipponEr
     self.childrens.append(AdditionalDataMember.init(self.allocator, name, index)) catch return ZipponError.MemoryError;
 }
 
+pub fn clone(self: AdditionalData, allocator: Allocator) ZipponError!AdditionalData {
+    var new_additional_data = AdditionalData.init(allocator);
+
+    new_additional_data.limit = self.limit;
+
+    for (self.childrens.items) |child| {
+        new_additional_data.childrens.append(child.clone(allocator) catch return ZipponError.MemoryError) catch return ZipponError.MemoryError;
+    }
+
+    return new_additional_data;
+}
+
 // This is name in: [name]
 // There is an additional data because it can be [friend [1; name]]
 pub const AdditionalDataMember = struct {
@@ -41,4 +53,12 @@ pub const AdditionalDataMember = struct {
     pub fn init(allocator: Allocator, name: []const u8, index: usize) AdditionalDataMember {
         return AdditionalDataMember{ .name = name, .index = index, .additional_data = AdditionalData.init(allocator) };
     }
+
+    pub fn clone(self: AdditionalDataMember, allocator: Allocator) ZipponError!AdditionalDataMember {
+        return AdditionalDataMember{
+            .name = allocator.dupe(u8, self.name) catch return ZipponError.MemoryError,
+            .index = self.index,
+            .additional_data = self.additional_data.clone(allocator) catch return ZipponError.MemoryError,
+        };
+    }
 };