I need help my xampp don't work please people

[nafex]

7:50:31 PM [Apache] Error: Apache shutdown unexpectedly.
7:50:31 PM [Apache] This may be due to a blocked port, missing dependencies,
7:50:31 PM [Apache] improper privileges, a crash, or a shutdown by another method.
7:50:31 PM [Apache] Press the Logs button to view error logs and check
7:50:31 PM [Apache] the Windows Event Viewer for more clues
7:50:31 PM [Apache] If you need more help, copy and post this
7:50:31 PM [Apache] entire log window on the forums


This is what happened when i start Apache please tell me what is the problem and solution to this problem
thanks.