Here are the two articles you'll need to set up your domain to "point" to your Zarla website:
https://support.hostinger.com/en/articles/4468886-how-to-manage-a-records
https://support.hostinger.com/en/articles/4738777-how-to-manage-cname-records
If you click on the first article, there will be instructions for logging into your Hostinger account and changing your A records. Please follow the directions for editing an existing A record. You only need to edit your domain's A record that has an "@" in the name field.
The only part of that A record which you'll change is the IP address. So after clicking "edit" next to that A record, you'll change the existing 34.120.137.41 (Hostinger's IP) to 109.105.219.109 (Zarla's IP) and then save your changes.
Next, please click on the second article I linked above, and make a similar change for the CNAME record. You'll need to find the CNAME record with a "www" in the field and click to edit that one.
For this one, you'll change connect.hostinger.com (Hostinger's default target) to custom.zarlasites.com (Zarla's target) and press save.
Using a domain registered at Hostinger
To connect your domain, your website must be published and active. If it’s unpublished, go to your site, click ‘Go Live,’ and subscribe.

Written by Dan
Updated over a week ago