diff --git a/debug_paths.php b/debug_paths.php
index 006dcb7..5dc6a59 100644
--- a/debug_paths.php
+++ b/debug_paths.php
@@ -5,15 +5,24 @@ echo "ROOT_PATH: " . ROOT_PATH . PHP_EOL;
 echo "STORAGE_PATH: " . STORAGE_PATH . PHP_EOL;
 echo "Is STORAGE_PATH dir? " . (is_dir(STORAGE_PATH) ? 'YES' : 'NO') . PHP_EOL;
 echo "Is STORAGE_PATH writable? " . (is_writable(STORAGE_PATH) ? 'YES' : 'NO') . PHP_EOL;
-echo "Current User: " . get_current_user() . PHP_EOL;
-echo "PHP User: " . exec('whoami') . PHP_EOL;
+echo "STORAGE Permissions: " . substr(sprintf('%o', fileperms(STORAGE_PATH)), -4) . PHP_EOL;
+echo "STORAGE Owner: " . posix_getpwuid(fileowner(STORAGE_PATH))['name'] . PHP_EOL;
 
-$testDir = STORAGE_PATH . '/test_mkdir_' . time();
-if (mkdir($testDir, 0777, true)) {
-    echo "Successfully created test dir: $testDir" . PHP_EOL;
+$invoicesDir = STORAGE_PATH . '/invoices';
+echo "Invoices Dir exists? " . (is_dir($invoicesDir) ? 'YES' : 'NO') . PHP_EOL;
+if (is_dir($invoicesDir)) {
+    echo "Invoices Writable? " . (is_writable($invoicesDir) ? 'YES' : 'NO') . PHP_EOL;
+    echo "Invoices Permissions: " . substr(sprintf('%o', fileperms($invoicesDir)), -4) . PHP_EOL;
+    echo "Invoices Owner: " . posix_getpwuid(fileowner($invoicesDir))['name'] . PHP_EOL;
+}
+
+echo "Current PHP Process User (whoami): " . exec('whoami') . PHP_EOL;
+
+$testDir = STORAGE_PATH . '/test_browser_' . time();
+if (@mkdir($testDir, 0777, true)) {
+    echo "SUCCESS: Created $testDir" . PHP_EOL;
     rmdir($testDir);
 } else {
-    echo "FAILED to create test dir: $testDir" . PHP_EOL;
-    $err = error_get_last();
-    echo "Error: " . ($err['message'] ?? 'Unknown') . PHP_EOL;
+    echo "FAILURE: Could not create $testDir" . PHP_EOL;
+    print_r(error_get_last());
 }