Ok, I finally managed to see the following error when I activate the plugin :
Fatal error: Cannot redeclare tgmpa() (previously declared in D:\wordpress\wp-content\plugins\wp-show-posts-pro\inc\class-tgm-plugin-activation.php:2126) in D:\wordpress\wp-content\themes\ultimate-soccer\framework\include\tgm_library\tgm-activation.php on line 2126