Problem:
This folder appears to be not writable. This is blocking translation for strings from appearing on the site. To resolve this, please contact your hosting company and request that they make that folder writable. Solution:
Did siteground confirm if the folder is writable?
They need to verify that the wp-content/languages folder is writtable.
Also, if possible try the following:
Go to wp-content/languages and create a new folder in it called WPML
Then go to WPML->Support->Troubleshooting-> Show custom MO file pre generation dialog box and run it Relevant Documentation:
