If you received an email from DirectAdmin with a subject "Warning: The system load average is 32.73" or a similar, here are basic steps you can do.
First of all you should identify what kind of a server load is that. Where the higher load come from?
It might be legitimate users browsing your sites, high peaks might be caused by:
More users come to your server, hence you have the bigger server load.
Or it might be a malicious traffic which you need to stop, high peaks might be caused by:
In order to identify what kind of a traffic is that you can use the following tools:
As soon as you identify a source of a higher load you need to apply solutions.
In order to reduce an effect from malicious actions you can do the following:
If you are not sure how to deal with the issue you are welcome to hire professionals for this. Check what Poralix offers by the link: https://www.poralix.com/services/fixed-rate-management/