Error in file error_log_php

In my file error_log.php it is possible to read the following errors (a short list):
Please may you help me about this? The website is ok and i don’t see malfunctions.
I use filebase pro + download log. and in file log i read “wp_wpfblog” or “InitClass, WPFB_Core::DownloadRedirect, WPFB_File->Download” so i think a problem with filebase o donwnload log o download notification that i dont’ use.

I use WordPress 3.9.3

[05-Apr-2017 11:40:36 UTC] WordPress errore sul database Unknown column ‘notify_admins’ in ‘field list’ per la query SELECT emails,notify_admins FROM wp_wpfblog_nfts WHERE (file_id = 1825 OR file_id = 0) AND (user_id = 0 OR user_id = 1) fatta da require(‘wp-blog-header.php’), require_once(‘wp-load.php’), require_once(‘wp-config.php’), require_once(‘wp-settings.php’), do_action(‘init’), call_user_func_array, wpfilebase_init, wpfb_loadclass, call_user_func, WPFB_Core::InitClass, WPFB_Core::DownloadRedirect, WPFB_File->Download, do_action(‘wpfilebase_file_downloaded’), call_user_func_array, __lambda_func, wpfblog_call, call_user_func_array, WPFBLOG_OnDownload::FileDownloaded

[05-Apr-2017 11:39:51 UTC] WordPress errore sul database Unknown column ‘notify_admins’ in ‘field list’ per la query SELECT emails,notify_admins FROM wp_wpfblog_nfts WHERE (file_id = 1851 OR file_id = 0) AND (user_id = 0 OR user_id = 1) fatta da require(‘wp-blog-header.php’), require_once(‘wp-load.php’), require_once(‘wp-config.php’), require_once(‘wp-settings.php’), do_action(‘init’), call_user_func_array, wpfilebase_init, wpfb_loadclass, call_user_func, WPFB_Core::InitClass, WPFB_Core::DownloadRedirect, WPFB_File->Download, do_action(‘wpfilebase_file_downloaded’), call_user_func_array, __lambda_func, wpfblog_call, call_user_func_array, WPFBLOG_OnDownload::FileDownloaded

REgards!