---
title: Problems with the vulnerability scanner
canonical: https://wpsecurityninja.com/docs/vulnerabilities/problems-with-the-vulnerability-scanner/
---
**Known problems and solutions**

## Warnings. Cannot create folder

```
Warning: mkdir(): No such file or directory in../plugins/security-ninja/modules/vulnerabilities/class-wf-sn-vu.php on line 121
Warning: file_put_contents(../uploads/security-ninja/outdated/outdated.dat): failed to open stream: No such file or directory in../plugins/security-ninja/modules/vulnerabilities/class-wf-sn-vu.php on line 123
```
Sometimes you will find warnings in the debug.log file about a file, outdated.dat, that cannot be stored or opened on your server.

The error is related to [the list of outdated plugins that is downloaded from the internet](https://wpsecurityninja.com/docs/vulnerabilities/what-is-the-outdated-dat-file/) and then checks if any outdated plugins are present on your website. If you have changed the permissions on the /wp-content/uploads/ folder it can cause problems or if you  have added a limitation in the.htaccess that blocks requests to the uploads/ folder.

If you have any additional protection for your /uploads/ folder, please deactivate temporarily while you activate the plugin, this is when the plugin tries to download the file for the first time.