diff --git a/classes/Importer.php b/classes/Importer.php
index 47766ad80192e680818664a6f099790a260f258a..e9ff9393a547749f2ecf6f8c36c2a26d29e17302 100644
--- a/classes/Importer.php
+++ b/classes/Importer.php
@@ -268,7 +268,7 @@ final class Importer
         }
     }
 
-    private function createStatics($statics)
+    private function createStatics($statics): void
     {
         try {
             foreach ($statics as $k => $v) {
@@ -277,17 +277,25 @@ final class Importer
                     if (file_exists($path[$i])) {
                         if (!is_dir($path[$i])) {
                             unlink($path[$i]);
-                            mkdir($path[$i]);
+                            if (!mkdir($concurrentDirectory = $path[$i]) && !is_dir($concurrentDirectory)) {
+                                throw new \RuntimeException(
+                                  sprintf('Directory "%s" was not created', $concurrentDirectory)
+                                );
+                            }
                         }
-                    } else {
-                        mkdir($path[$i]);
+                    } elseif (!mkdir($concurrentDirectory = $path[$i]) && !is_dir($concurrentDirectory)) {
+                        throw new \RuntimeException(
+                          sprintf('Directory "%s" was not created', $concurrentDirectory)
+                        );
                     }
+
                     chdir($path[$i]);
                 }
 
                 $fh = fopen(end($path), 'w');
                 fwrite($fh, $v);
                 fclose($fh);
+
                 for ($i = 0; $i < sizeof($path) - 1; $i++) {
                     chdir('..');
                 }