You need to update LearnPress translation file and update Eduma translation file before translating this page.

On the course page, the texts which are from our theme is in the below pictures:

You can edit all those texts in our theme from the Loco Translate plugin.

Eduma_translate_all_course_loco

After you translated those texts, your All Courses page will look like this

Eduma_translate_all_course_after_translated

The price text “Free” is not in the Eduma theme, it is from the LearnPress plugin. Therefore you need to translate it in the LearnPress plugin.

The others in the sidebar of the All Courses page are the widget. You can edit them in your Dashboard => Appearance => Widgets => Sidebar Courses.