Does JetBackup offer a translation feature? Even though I've changed my account language, JetBackup is still English.
Procedure
As of JetBackup 4, JetBackup offers a Translation feature, but this must be configured manually.
The original files for WHM are located in
/usr/local/cpanel/whostmgr/docroot/templates/jetbackup/app/lang/en/{SECTION.json}
where {SECTION.json} relates to a section within the JetBackup Dashboard.
Overridden language files for WHM should be placed in
/usr/local/cpanel/whostmgr/docroot/templates/jetbackup/app/lang/override/xx/
where xx is the corresponding language code for your desired language.
The original file for cPanel is located at
/usr/local/cpanel/base/frontend/paper_lantern/jetbackup/app/lang/en/common.json
The overridden language file should be placed at
/usr/local/cpanel/base/frontend/paper_lantern/jetbackup/app/lang/xx/common.json
where xx is the corresponding language code for your desired language.