Hi, welcome and thank you for your question. My name is ***** ***** I am glad to assist you today.
I am very sorry about your issues. Are you using PowerPoint for Mac? Which version of PowerPoint are you using?
Please let me know by replying to me here so that I can help you further.
Powerpoint 14.5.5 for Mac
Hi, thank you for writing back with that information.
The very first thing that you can do to fix this problem is to update your MS PowerPoint. Please fetch and install updates for your MS Office and then after installing the updates, please test and see if the error is gone.
Keep me posted with your results so that I can assist you further.