No display data admin for Testimonials and Teachers

Hi, I can't find where is the location to modify Testimonial description ("After graduation we were very worried.... Maria John"). Please see the image

http://www.upnech.edu.mx/testimonial_error.png

It's the same problem to extra data Teacher (Speciality - Availability Monday... Sunday... social media...) Please see the image

http://www.upnech.edu.mx/teacher_error.png

Can you fix that problem? I can't see that fields on admin area
Thanks!

Please install option tree plugin manually download plugin here >> https://www.dropbox.com/s/io7a2mnnwvgb79g/option-tree.zip?dl=0 and then go to wp-admin >> plugins >> add new then click on upload once you upload this plugin just activate it and all your options will come back to edit.