How to resolve port error

[alfan]

i am facing below issue please help me to resolve it

Error: Apache shutdown unexpectedly.
10:09:48 AM [Apache] This may be due to a blocked port, missing dependencies,
10:09:48 AM [Apache] improper privileges, a crash, or a shutdown by another method.
10:09:48 AM [Apache] Press the Logs button to view error logs and check
10:09:48 AM [Apache] the Windows Event Viewer for more clues
10:09:48 AM [Apache] If you need more help, copy and post this
10:09:48 AM [Apache] entire log window on the forums