VPS is not getting started

If VPS is not starting and giving the following error:

Failed to allocate directory watch: Too many open files

Then add the following line to the /etc/sysctl.conf file: 

fs.inotify.max_user_instances=1024

This command increases the inotify limit for the LXC server. 

Confirm the proper inclusion of the entry by executing sysctl -p command. 

After ensuring the entry is correct, start the VPS and check.