xampplib: line 22: netstat: command not found

When I try to start my xampp I get these errors:

sudo /opt/lampp/lampp start
Starting XAMPP for Linux 5.6.30-0...
XAMPP: Starting Apache.../opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
/opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
ok.
XAMPP: Starting MySQL.../opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
ok.
XAMPP: Starting ProFTPD.../opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
ok.

How can I solve this problem with xampplib and how can I get the xampp to work?

It seems that your xampp instance is complaining about lack of netstat command.

netstat is a part of net-tools package, so run this command to install netstat:

sudo apt install net-tools

Then try to start your xampp again, it should work now.