Thank you for contacting WPML support, I'd be happy to help you with this issue.
If you are using Elementor widget Button, the internal URL will be adjusted automatically by WPML and not be available in Advanced Translation Editor (ATE). However, if you want to translate it, you can go to WPML > String Translation > Search for the URL and translate it.
While checking the debug info, I see that the WordPress Memory Limit is below the requirements. The minimum requirements are 128M, but we do recommend 256M and the debug information of your site shows it set to 40M. Please check this link for more details https://wpml.org/home/minimum-requirements/.
You can increase it by adding the following code in your wp-config.php file, right before the /* That’s all, stop editing! Happy publishing. */ line: