Importing demo pictures failed

Hi every time i try to import demo content I am getting an error. I have contacted my host provider and i have tried to import content through appearance and through tools also. I am still getting this message.

Failed to import Media “mercedes_amg_gt”
Failed to import Media “lamborgini_huracan_650”
Failed to import Media “Ferrari-California”
Failed to import Media “2012 Mercedes-Benz C63 AMG Coupe Black Series”
Failed to import Media “1”
Failed to import Media “2”
Failed to import Media “3”
Failed to import Media “4”
Failed to import Media “1”
Failed to import Media “autozone”
Failed to import Media “3”
Failed to import Media “4”
Failed to import Media “5”
Failed to import Media “6”
Failed to import Media “7”
Failed to import Media “8”
Failed to import Media “9”
Failed to import Media “autozone”
Failed to import Media “11”
Failed to import Media “12”
Failed to import Media “brand-1”
Failed to import Media “brand-2”
Failed to import Media “brand-3”
Failed to import Media “brand-4”
Failed to import Media “brand-5”
Failed to import Media “brand-6”
Failed to import Media “brand-7”
Failed to import Media “brand-8”
Failed to import Media “1”
Failed to import Media “2”
Failed to import Media “3”
Failed to import Media “4”
Failed to import Media “AUDI ABT S6”
Failed to import Media “AUDI ABT S6”
Failed to import Media “AUDI ABT S6”
Failed to import Media “https://www.youtube.com/watch?v=neS5h_VSvb8”
Failed to import Media “1”
Failed to import Media “2”
Failed to import Media “3”
Failed to import Media “1”
Failed to import Media “2”
Failed to import Media “3”
Failed to import Media “map”
Failed to import Media “sdf43”
Failed to import Media “Autobg”
Failed to import Media “auto”
Failed to import Media “auto”
Failed to import Media “10”
Failed to import Media “23456536”
Failed to import Media “b435”
Failed to import Media “1”
Failed to import Media “2”
Failed to import Media “3”
Failed to import Media “4”
Failed to import Media “1”
Failed to import Media “1”
Failed to import Media “2”
Failed to import Media “sl1”
Failed to import Media “sl2”
Failed to import Media “sl3”
Failed to import Media “3”
Failed to import Media “4”
Failed to import Media “5”
Failed to import Media “2012-lexus-gx460-profile”
Failed to import Media “2014-lexus-gs-460-dash-interior”
Failed to import Media “2014-lexus-gx-460_100437617_h”
Failed to import Media “2014-lexus-gx-460_100442376_l”
Failed to import Media “2014-Lexus-GX-interior-black-nuluxe-trim-overlay-1204×677-GX717”
Failed to import Media “2015-lexus-gx-460_100474246_h”
Failed to import Media “2015-Lexus-GX-exterior-shot-action-overlay-1204×677-LEXGXGMY150028”
Failed to import Media “2015-Lexus-GX-interior-seating-overlay-1204×677-LEXGXGMY140046”
Failed to import Media “2015-lexus-lx-interior-wallpaper-3”
Failed to import Media “2016-Lexus-GX-460”
Failed to import Media “935701f5393f1edd5fbdab8dc412b422”
Failed to import Media “24086492014-lexus-gx460-driver-front-three-quarters-overheadjpg”
Failed to import Media “foto-lexus-gx-460_02”
Failed to import Media “lexus-gx-460-1”
Failed to import Media “lexus-gx-interior-wallpaper-4”
Failed to import Media “546b4dde504a7_-__mg_0215-edit-lg”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_0a”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_01”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_1b”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_3c”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_3e”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_11”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_12”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_17”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_24”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_37”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_38”
Failed to import Media “Lamborghini-Huracan_LP610-4_2015_40”
Failed to import Media “Audi-A6_2015_07”
Failed to import Media “Lamborghini Huracán LP 610-4 – Official Video”
Failed to import Media “Lamborghini Huracán LP 610-4 technical official movie”
Failed to import Media “2016-Jaguar-XE-front-end”
Failed to import Media “Mercedes-Benz-C-Class_Coupe_2017”
Failed to import Media “Audi R8 V10 plus/Fahraufnahme”
Failed to import Media “2013-audi-R8-V10-Plus-Blue”
Failed to import Media “Audi R8 V10 plus/Fahraufnahme”
Failed to import Media “2011_BMW_M_Coupe_US_Version_bmw”
Failed to import Media “bmw_title”
Failed to import Media “1920x1200_bmw_m1series_coupe_03”
Failed to import Media “BMW-1er-M-Coupé-Wallpaper-1600×1200-0111”
Failed to import Media “bmw-1-m-coupe-621280”
Failed to import Media “ferrari_458_italia_orange_front”
Failed to import Media “2013 Ferrari F12 Berlinetta Wheelsandmore”
Failed to import Media “wheelsandmore_mercedes-benz_slr_mclaren_722_epochal_2”
Failed to import Media “wheelsandmore_mercedes-benz_slr_mclaren_722_edition_3”
Failed to import Media “wheelsandmore_mercedes-benz_slr_mclaren_722_epochal_1”
Failed to import Media “wheelsandmore_mercedes-benz_slr_mclaren_722_epochal_3”
Failed to import Media “wheelsandmore_mercedes-benz_slr_mclaren_722_epochal_4”
Failed to import Media “wheelsandmore_mercedes-benz_slr_mclaren_722_epochal_5”
Failed to import Media “2013 Ferrari F12 Berlinetta Wheelsandmore”
Failed to import Media “2014-Dodge-Viper-Gts-R”
Failed to import Media “2012-bentley-continental-supersports-8”
Failed to import Media “2011 Wheelsandmore Mc Laren Mercedes SLR 722 Epochal”
Failed to import Media “Wheelsandmore-Mercedes-Benz-SLR-McLaren-722”
Failed to import Media “2015-chevrolet-cruze-diesel-1sl”
Failed to import Media “Audi R8 V10 plus/Fahraufnahme”
Failed to import Media “2002-Dodge-Viper-GTS-Final-Edition-V1-1080”
Failed to import Media “1”
Failed to import Media “2”