You seem to be referring to an event that occurred in 2014, during the conflict between Israel and Palestine in Gaza, also known as “Operation Protective Edge”. On August 13, Israel requested a shipment of American-made Hellfire precision missiles, a purchase that normally would have been approved quickly.
However, the U.S. administration, particularly the White House and the State Department, were allegedly upset with Israel’s handling of the conflict, particularly in regard to the battle of Rafah on August 1, thought to be one of the deadliest days of the conflict. The U.S. administration decided to scrutinize more closely all arms shipments to Israel, effectively putting the process on hold, leading to a diplomatic rift between the two countries.
Do keep in mind news events like this are constantly evolving, and I advise looking for more recent sources for the most accurate, up-to-date information.