diff --git a/file_reader b/file_reader
index 1d37009..54a063d 160000
--- a/file_reader
+++ b/file_reader
@@ -1 +1 @@
-Subproject commit 1d370096d9b0767627566191be1e5526a5c90238
+Subproject commit 54a063d5e6ab8ea06b1101154574d2eaeebbde5f
diff --git a/src/lily_png.cpp b/src/lily_png.cpp
index 1253623..2b1d98e 100644
--- a/src/lily_png.cpp
+++ b/src/lily_png.cpp
@@ -7,7 +7,10 @@ static std::expected<bool, lily_png::png_error> read_raw_data(const std::string
 {
 	std::println("Zlib version is {}", zlibVersion());
 	unsigned char magic[9] = {137, 80, 78, 71, 13, 10, 26, 10};
-	file_reader::file_reader reader(file_path);
+	file_reader::file_reader reader{};
+	auto result = reader.open_file(file_path);
+	if (!result)
+		return std::unexpected(lily_png::png_error::file_doesnt_exist);
 	char file_magic[9] = {0};
 	auto res = reader.read_buffer(file_magic, 8).or_else([](const file_reader::RESULT &res)
 	{
diff --git a/src/lily_png.h b/src/lily_png.h
index a14ca51..e935f9a 100644
--- a/src/lily_png.h
+++ b/src/lily_png.h
@@ -3,6 +3,7 @@
 #include "../file_reader/src/file_read.h"
 #include <string>
 #include <vector>
+#include <format>
 #include "utils.h"
 #include "filter.h"
 #include <zlib.h>
@@ -24,5 +25,26 @@ namespace lily_png
 	};
 
 
+
 	std::expected<metadata, png_error> read_png(const std::string &file_path, file_reader::buffer<unsigned char> &data);
-}
\ No newline at end of file
+}
+
+template <>
+struct std::formatter<lily_png::png_error>
+{
+
+	constexpr auto parse(std::format_parse_context& ctx) {
+		return ctx.begin();
+	}
+
+	auto format(const lily_png::png_error& id, std::format_context& ctx) const
+	{
+		if (id == lily_png::png_error::file_doesnt_exist)
+			return std::format_to(ctx.out(), "{}", "File doesn't exist");
+		if (id == lily_png::png_error::read_failed)
+			return std::format_to(ctx.out(), "{}", "Read failed");
+		if (id == lily_png::png_error::file_is_not_a_png)
+			return std::format_to(ctx.out(), "{}", "File is not a png");
+		return std::format_to(ctx.out(), "{}", "Unkown error");
+	}
+};
\ No newline at end of file