Too many open files

sudo sysctl -p /etc/sysctl.conf
sysctl: /etc/sysctl.conf(61): invalid syntax, continuing...
sysctl: /etc/sysctl.conf(62): invalid syntax, continuing...
2 last lines of sysctl
* soft nofile 409600
* hard nofile 1024000
how do i properly solve error: socket() failed: Too many open files (24) ?