We have add in our theme string
I put text-domain in style.css ex-track, but string does not appear in the Theme and plugin localization. When I do scan, it looks like never get end of the scan.
I've scanned only your theme, on WPML > Theme and Plugin localization, and the process was completed in a few seconds. The string is available for translation in WPML > String Translation.
When scanning, please make sure to do in small batches, so the process don't get stuck.
1. Go to WPML > Theme and Plugin Localization
2. There, there's a list with available themes and plugins, which can be selected by clicking on the checkbox;
3. I selected the active Theme, clicking on its checkbox;
4. I clicked the button under the list to scan it;
I didn't have any issues when doing that. Are these the steps you're following?