Title: assumptions on writeability
Last modified: September 10, 2025

---

# assumptions on writeability

 *  [donbowman](https://wordpress.org/support/users/donbowman/)
 * (@donbowman)
 * [9 months ago](https://wordpress.org/support/topic/assumptions-on-writeability/)
 * I use wp-stateless [https://en-ca.wordpress.org/plugins/wp-stateless/](https://en-ca.wordpress.org/plugins/wp-stateless/)
   so my wp-content is non-writable (there is more than one instance running without
   a shared filesystem). This can cause an issue in gutlider as below.
 *     ```wp-block-code
       2025/09/10 19:13:59 [error] 93#93: *285 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught TypeError: ftp_nlist(): Argument #1 ($ftp) must be of type FTP\Connection, null given in /app/wp-admin/includes/class-wp-filesystem-ftpext.php:438Stack trace:#0 /app/wp-admin/includes/class-wp-filesystem-ftpext.php(438): ftp_nlist()#1 /app/wp-content/plugins/slider-blocks/includes/classes/class-generate-style.php(82): WP_Filesystem_FTPext->exists()#2 /app/wp-includes/class-wp-hook.php(324): GutSlider_Dynamic_Style->generate_and_enqueue_combined_css()#3 /app/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()#4 /app/wp-includes/plugin.php(517): WP_Hook->do_action()#5 /app/wp-includes/script-loader.php(2299): do_action()#6 /app/wp-includes/class-wp-hook.php(324): wp_enqueue_scripts()#7 /app/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()#8 /app/wp-includes/plugin.php(517): WP_Hook->do_action()#9 /app/wp-includes/general-template.php(3192): do_action()#10 /app/wp-includes/template-canvas.php(17): wp_head()#11 /app/wp-includes/" while reading response header from upstream, client: 172.17.0.1, server: _, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/run/php/php-fpm.sock:", host: "localhost"
       ```
   

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 * 0 replies
 * 1 participant
 * Last reply from: [donbowman](https://wordpress.org/support/users/donbowman/)
 * Last activity: [9 months ago](https://wordpress.org/support/topic/assumptions-on-writeability/)
 * Status: not resolved