Fatal error: Uncaught TypeError: ftp_nlist(): Argument #1 ($ftp) must be of type FTP\Connection, null given in /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-admin/includes/class-wp-filesystem-ftpext.php:438 Stack trace: #0 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-admin/includes/class-wp-filesystem-ftpext.php(438): ftp_nlist(NULL, '/home/klient.dh...') #1 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-admin/includes/class-wp-filesystem-base.php(231): WP_Filesystem_FTPext->exists('/home/klient.dh...') #2 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-admin/includes/class-wp-filesystem-base.php(58): WP_Filesystem_Base->find_folder('/home/klient.dh...') #3 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-content/plugins/ip-location-block/classes/class-ip-location-block-file.php(87): WP_Filesystem_Base->abspath() #4 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-content/plugins/ip-location-block/classes/class-ip-location-block-file.php(119): IP_Location_Block_FS->absolute_path('/home/klient.dh...') #5 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-content/plugins/ip-location-block/classes/class-ip-location-block-util.php(30): IP_Location_Block_FS->exists('/home/klient.dh...') #6 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-content/plugins/ip-location-block/classes/class-ip-location-block-apis.php(1084): IP_Location_Block_Util::get_storage_dir('apis') #7 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-content/plugins/ip-location-block/ip-location-block.php(50): require('/home/klient.dh...') #8 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-settings.php(526): include_once('/home/klient.dh...') #9 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-config.php(92): require_once('/home/klient.dh...') #10 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-load.php(50): require_once('/home/klient.dh...') #11 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-blog-header.php(13): require_once('/home/klient.dh...') #12 /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/index.php(17): require('/home/klient.dh...') #13 {main} thrown in /home/klient.dhosting.pl/mtbxcpl/mtb-xc.pl/public_html/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438