It is common for the cord to separate from the plug end of an extension cord. Don’t throw it out. You can repair it yourself so it is safe and save the cost of a new extension cord. In this video I walk you through the steps to repair the plug end of an extension cord.
Fix a cord that has separated from the plug
Female plug end: https://amzn.to/47b09Ho
Male plug end: https://amzn.to/40FQPZt
Milwaukee 6-in-1 pliers: https://amzn.to/3IJJm4M
(affiliate links)