Demo Importer doesn’t work properly

Hi, I've just purchased the Catch Sketch Pro template because I want to use the Blog template available. However, upon trying to Import it I get a bunch of errors, see below : [WARNING] Failed to import product_cat Accessories [WARNING] Failed to import pa_color Blue [WARNING] Failed to import product_cat Clothing [WARNING] Failed to import product_cat Decor [WARNING] Failed to import product_visibility exclude-from-catalog [WARNING] Failed to import product_visibility exclude-from-search [WARNING] Failed to import product_type external [WARNING] Failed to import product_visibility featured [WARNING] Failed to import pa_color Gray [WARNING] Failed to import pa_color Green [WARNING] Failed to import product_type grouped [WARNING] Failed to import product_cat Hoodies [WARNING] Failed to import pa_size Large [WARNING] Failed to import pa_size Medium [WARNING] Failed to import product_cat Music [WARNING] Failed to import product_visibility outofstock [WARNING] Failed to import product_visibility rated-1 [WARNING] Failed to import product_visibility rated-2 [WARNING] Failed to import product_visibility rated-3 [WARNING] Failed to import product_visibility rated-4 [WARNING] Failed to import product_visibility rated-5 [WARNING] Failed to import pa_color Red [WARNING] Failed to import product_type simple [WARNING] Failed to import pa_size Small [WARNING] Failed to import product_cat Tshirts [WARNING] Failed to import product_cat Uncategorized [WARNING] Failed to import product_type variable [WARNING] Failed to import action-group wc_update_product_lookup_tables [WARNING] Failed to import action-group woocommerce-db-updates [WARNING] Failed to import pa_color Yellow The full log file is available here : https://blog.hashtastic.eu/wp-content/uploads/2020/07/log_file_2020-07-16__15-10-55.txt I've tried to import another template and I have the exact same issue. This is on a fresh install of Wordpress, created solely for the purpose of using this template. If this issue cannot be solved I will have to request a refund. Thanks, Mark