Error:-

root@ip-Your-Ip-Address:/opt/lampp# /opt/lampp/lampp start
Starting XAMPP for Linux 8.1.25-0...
XAMPP: Starting Apache...fail.
XAMPP:  Another web server is already running.
XAMPP: Starting MySQL...ok.

When You get this error You don’t need to panic. Just Follow my commands and instruction you will get the solution.

First Solution:-

Step 1:-

You must locate and terminate any programs that are utilizing the ports that Apache and ProFTPD require. To do this, use the methods listed below:

sudo lsof -i :80

Step 2:-

Once you identify the process, note down its PID (Process ID). And Stop the process.

sudo kill <PID>

Step 3:-

Then Run this Command to restart the apache.

sudo /opt/lampp/lampp restartapache

Second Solution:-

Step 1:-

Check the status of Apache: Let’s first make sure that Apache is really operating outside of XAMPP. To see the Apache service’s current status, use the following command:

sudo service apache2 status

Step 2:-

Stop Apache Service: The following command can be used to halt Apache if it is operating outside of XAMPP:

sudo service apache2 stop

Step 3:-

After stopping Apache, you can attempt to resume it in XAMPP by utilizing:

sudo /opt/lampp/lampp restartapache