This call to Prestashop Web Services failed and returned an HTTP status of 401. That means: Unauthorized
![SOLVED] Module manager 500 Internal Server Error - Addons, modules and themes developers - PrestaShop Forums SOLVED] Module manager 500 Internal Server Error - Addons, modules and themes developers - PrestaShop Forums](https://www.prestashop.com/forums/uploads/monthly_2020_07/1677247332_Capturadepantalla2020-07-17ala(s)6_15_38PM.png.d04f60fbae72ea56d87b13df82f22f1d.png)
SOLVED] Module manager 500 Internal Server Error - Addons, modules and themes developers - PrestaShop Forums
![The server returned a "500 Internal Server Error" after update to 1.7.5.2 · Issue #14250 · PrestaShop/PrestaShop · GitHub The server returned a "500 Internal Server Error" after update to 1.7.5.2 · Issue #14250 · PrestaShop/PrestaShop · GitHub](https://user-images.githubusercontent.com/50954519/59608726-ab454200-911e-11e9-86f1-c2804b88038c.png)
The server returned a "500 Internal Server Error" after update to 1.7.5.2 · Issue #14250 · PrestaShop/PrestaShop · GitHub
![The server returned a "500 Internal Server Error" after update to 1.7.5.2 · Issue #14250 · PrestaShop/PrestaShop · GitHub The server returned a "500 Internal Server Error" after update to 1.7.5.2 · Issue #14250 · PrestaShop/PrestaShop · GitHub](https://user-images.githubusercontent.com/50954519/59608673-8781fc00-911e-11e9-9bf1-99a54f944903.png)
The server returned a "500 Internal Server Error" after update to 1.7.5.2 · Issue #14250 · PrestaShop/PrestaShop · GitHub
![Prestashop backend upload image failed solution (500 ERROR and attempted to call function "imagecreatetruecolor" from the global namespace) | Unicoq - IT Consulting Firm Prestashop backend upload image failed solution (500 ERROR and attempted to call function "imagecreatetruecolor" from the global namespace) | Unicoq - IT Consulting Firm](https://unicoq.com/wp-content/uploads/2020/07/prestasohp-upload-image-500-error-1170x700.jpg)
Prestashop backend upload image failed solution (500 ERROR and attempted to call function "imagecreatetruecolor" from the global namespace) | Unicoq - IT Consulting Firm
![Prestashopo 1.7.4.3 - The server returned a "500 Internal Server Error". - Configuring and using PrestaShop - PrestaShop Forums Prestashopo 1.7.4.3 - The server returned a "500 Internal Server Error". - Configuring and using PrestaShop - PrestaShop Forums](https://www.prestashop.com/forums/uploads/monthly_2018_10/image.png.8f46071a39ddaa8ca5ae076819219076.png)
Prestashopo 1.7.4.3 - The server returned a "500 Internal Server Error". - Configuring and using PrestaShop - PrestaShop Forums
![500 Internal Server Error upon entering module configuration page FAQ. Best tools for PrestaShop ➜ MyPrestaModules.com 500 Internal Server Error upon entering module configuration page FAQ. Best tools for PrestaShop ➜ MyPrestaModules.com](https://myprestamodules.com/img/cms/500.png)
500 Internal Server Error upon entering module configuration page FAQ. Best tools for PrestaShop ➜ MyPrestaModules.com
![A completed solution to Internal Server Error 500 caused by PHP Curl with Prestashop 1.7.4.2 | Unicoq - IT Consulting Firm A completed solution to Internal Server Error 500 caused by PHP Curl with Prestashop 1.7.4.2 | Unicoq - IT Consulting Firm](https://unicoq.com/wp-content/uploads/2019/08/prestashop-paypal-500-internal-error-solved-1170x700.png)
A completed solution to Internal Server Error 500 caused by PHP Curl with Prestashop 1.7.4.2 | Unicoq - IT Consulting Firm
This call to Prestashop Web Services failed and returned an HTTP status of 401. That means: Unauthorized
![500 Internal Server Error upon entering module configuration page FAQ. Best tools for PrestaShop ➜ MyPrestaModules.com 500 Internal Server Error upon entering module configuration page FAQ. Best tools for PrestaShop ➜ MyPrestaModules.com](https://myprestamodules.com/img/cms/code_02.jpg)