Error: Apache shutdown unexpectedly

[santosjhas]

12:39:39 PM [main] Initializing Control Panel
12:39:39 PM [main] Windows Version: Windows 7 Ultimate 64-bit
12:39:39 PM [main] XAMPP Version: 7.1.8
12:39:39 PM [main] Control Panel Version: 3.2.2 [ Compiled: Nov 12th 2015 ]
12:39:39 PM [main] Running with Administrator rights - good!
12:39:39 PM [main] XAMPP Installation Directory: "c:\xampp\"
12:39:39 PM [main] Checking for prerequisites
12:39:39 PM [main] All prerequisites found
12:39:39 PM [main] Initializing Modules
12:39:39 PM [mysql] XAMPP MySQL is already running on port 3306
12:39:39 PM [main] The FileZilla module is disabled
12:39:39 PM [main] The Mercury module is disabled
12:39:39 PM [main] Starting Check-Timer
12:39:39 PM [main] Control Panel Ready
12:39:43 PM [Apache] Attempting to start Apache app...
12:39:43 PM [Apache] Status change detected: running
12:39:45 PM [Apache] Status change detected: stopped
12:39:45 PM [Apache] Error: Apache shutdown unexpectedly.
12:39:45 PM [Apache] This may be due to a blocked port, missing dependencies,
12:39:45 PM [Apache] improper privileges, a crash, or a shutdown by another method.
12:39:45 PM [Apache] Press the Logs button to view error logs and check
12:39:45 PM [Apache] the Windows Event Viewer for more clues
12:39:45 PM [Apache] If you need more help, copy and post this
12:39:45 PM [Apache] entire log window on the forums
12:45:21 PM [main] Executing "services.msc"