Solution:
Seems the language code pair on the site (en-ca) is not configured properly for the SDL project which is why SDL can't able to accept the translation and process it further.
At this stage, please ask the SDL team to configure the language code pair for the SDL project according to the language code pair(en-ca) declared for your site.
After adding the code pair for the SDL project properly, Please open WPML -> Translation Management -> Translation Services tab and click the “Refresh language pairs" button. I hope the issue will be solved right after that.
Not all the content has been sent to the translation service.
Solution:
ACF fields
The fields not being sent to translation have their translation option set incorrectly. You need to change the translation preference to "Translate," update the pages and re-send the pages for translation. Please read about working with WPML and ACF here.
Those are custom Gutenberg blocks which you need to add translation support for. You can read about adding language configuration files for Gutenberg blocks here.
