Sometimes, our theme/plugin will update and it will contain new string, so these translation files in older version will not work. Please try follow our instruction below to update these translation files to make it work in new version and update new string.

Step 1: Please backup all translation files first before do anything.

Step 2: https://photos.app.goo.gl/vEBRd8nULbZT4CFZA

Step 3: https://photos.app.goo.gl/ZeQk3oZK84KrB7KT8

Step 4: Upload these translation files and check it again.