Problem wth PP (Spanish and English)

I have been trying to create a course with articulate Presenter and Engage,
but everything is working fine until i add a few slides and a message
appear saying that "powerpoint have find a problem with the content.
Powerpoint can try to solve the presentation. If you trust the content
clic on repair."

Then i click on repair and the following message appear "Some controls on
this presentation can not be activated. They might not be registered in the
computer.
I click on accept and then it says "Powerpoint can not read the content of
PRUEBA (Fixed) and had to remove it.

Can you help me to solve this problem because it won´t let me finish my
presentation and when i click on "Preview" or "Publish" another window
appear saying "Powerpoint can´t proceed without saving the presentation"
then i save it and still it doesnt work and a window appear saying " It
failed something that can make this unstable powerpoint . Save and restart
PowerPoint presentations ."

Thank you