Our 2nd Tier Support checked, and the issue comes from the theme. Kindly contact your theme author and let them know about the missing account sidebar from the translated language.
I have reached out to the theme support and their answer was: Please contact with WPML team regarding WPML issue as we do not provide support for 3rd party plugins due to Envato market policy.
We have a solution, you'll need to edit the page using the UX builder here hidden link and select the "Woocommerce - My Account" template as shown in the attached screenshot.
However, I can't seem to save changes on the page editor. Could you check this out with your theme author?
Thank you for pointing this out! I was also unable to save but the issue is now resolved. I changed the template to "Woocommerce - My Account" in the English language because it was also set to "Default" and I was able to save/update there. The changes automatically translated to the Arabic language.