Shopify New Product Sync Issue

Hey community. Has anyone every come across this Shopify Sync Issue before?
We added a new product to our store and every since we get this ERROR message:

HTTPSConnectionPool(host=‘https’, port=443): Max retries exceeded with url: // (Caused by NewConnectionError(‘<urllib3.connection.HTTPSConnection object at 0x7f63e084eb70>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution’,))

Anyone knows what to do?

AFAIK site url should be “” (no https or slashes required)