ERROR: Failed to insert

[mediaadslabs]

Hi i have try to crawl one of my blogs and the crawl.php give an error wen try to insert
can you help on this error pls
ERROR: Failed to insert https://printservices.altervista.org/
ERROR: Failed to insert https://printservices.altervista.org
ERROR: Failed to insert https://printservices.altervista.org/free-images-icons/
ERROR: Failed to insert https://printservices.altervista.org/221-2/
ERROR: Failed to insert https://printservices.altervista.org/contact-me/
ERROR: Failed to insert https://printservices.altervista.org/2022/02/10/the-complete-guide-to-online-sales-with-videos-and-social-media-no-capital-investment/
ERROR: Failed to insert https://printservices.altervista.org/carrinho/
ERROR: Failed to insert https://printservices.altervista.org/downloads/pokemon-herdier/
ERROR: Failed to insert https://printservices.altervista.org/checkout/
ERROR: Failed to insert https://printservices.altervista.org/downloads/pokemon-taurus/
ERROR: Failed to insert https://printservices.altervista.org/downloads/pokemon-bonsly/
ERROR: Failed to insert https://printservices.altervista.org/downloads/pokemon-morelull/
ERROR: Failed to insert https://printservices.altervista.org/downloads/pokemon-scyther/
ERROR: Failed to insert https://printservices.altervista.org/downloads/pokemon-lycanrock/
ERROR: Failed to insert https://printservices.altervista.org/downloads/axe/
ERROR: Failed to insert https://printservices.altervista.org/downloads/enigma-bag/
ERROR: Failed to insert https://printservices.altervista.org/downloads/health-pack-for-poison/

[MusheAbdulHakim]

Please make sure you create the database and import the sql file before crawling. Crawled urls are inserted into the database so when there is a problem with db connection or when there are missing tables, You will get this kind of errors.