Before activating the theme i went through all system status checks and it lacks one:

"WP_remote_post"

I don't know how to proceed to correct this neither i found any information in the documentation.

Thank you for your assistance

Here is the system status:

### Theme Information ###

Theme Name: Kalium - Child Theme
Current Version: 2.1.3
Theme Directory: ~/wp-content/themes/kalium/
Child Theme: ✔
Child Theme Directory: ~/wp-content/themes/kalium-child/
License Activated: ✔

### WordPress Environment ###

Home URL: https://dogworking.es
Site URL: https://dogworking.es
WordPress Version: 4.8.2
WordPress Multisite: -
WordPress Memory Limit: 768 MB
WordPress Debug Mode: -
Language: es_ES

### Server Environment ###

Server Info: Apache
PHP Version: 7.0.24
PHP Post Max Size: 128 MB
PHP Time Limit: 120
PHP Max Input Vars: 3000
Max Upload Size: 128 MB
MySQL Version: 5.6.36
cURL version: 7.53.0, OpenSSL/1.0.2k
DOM Document: ✔
WP Remote Get: ✔
WP Remote Post: ❌
GD Library: bundled (2.1.0 compatible)

### Active Plugins (2) ###

"Akismet Anti-Spam" by "Automattic" – 4.0
"WP Super Cache" by "Automattic" – 1.5.7

{"wp":{"use":false,"adminUrl":"dogworking.es/wp-admin","username":"","password":""},"ftp":{"use":false,"url":"","port":"","user":"","password":"","path":""}}