Apache shutdown unexpectedly.

[Kmichi]

I'm developing a website on my home computer and my machine stopped at my last entry.
When the next xampp was started, the program refused to start with an error signal.
I'm looking for a solution to the problem in the forum.
Thank you in advance!

Windows Version: Win 10 Pro 64-bit
XAMPP Version: 7.1.11
Control Panel Version: 3.2.2 [ Compiled: Nov 12th 2015 ]
Apache/2.4.29 (Win32) OpenSSL/1.0.2l PHP/7.1.11

Starting Check-Timer
12:33:04 [main] Control Panel Ready
12:36:30 [Apache] Attempting to start Apache app...
12:36:31 [Apache] Status change detected: running
12:36:39 [Apache] Status change detected: stopped
12:36:39 [Apache] Error: Apache shutdown unexpectedly.
12:36:39 [Apache] This may be due to a blocked port, missing dependencies,
12:36:39 [Apache] improper privileges, a crash, or a shutdown by another method.
12:36:39 [Apache] Press the Logs button to view error logs and check
12:36:39 [Apache] the Windows Event Viewer for more clues
12:36:39 [Apache] If you need more help, copy and post this
12:36:39 [Apache] entire log window on the forums

Aache error log:
...Parent process exited abruptly. Child process is ending