There are several possible reasons why your MacBook might be crashing repeatedly. Outdated software, viruses, problematic apps, peripheral device malfunction, or hardware issues are among the most common causes of MacBook crashes. To find out the reason for the crash, you can follow several methods such as resetting the SMC, running Apple Diagnostic, booting into safe mode, and using Disk Utility to fix the issue. Checking the Console for error codes is also recommended. Additionally, you can use cybersecurity software like MacKeeper to prevent future crashes and protect your device from potential threats.