At Hostinger, if your hosting plan is Business or greater, you can use the Backup tool to manually create backups of all the files and databases on your hosting plan. Just go to Websites → Manage, search for Backups on the sidebar, and click on it:
Once there, click Select on the Generate new backup option:
Next, click on Proceed, and the backup will start to be prepared. The process can take a few minutes to a few hours, depending on the number and size of files and databases in your hosting plan.