My Powerpoint Timer has stopped working

@Scott Cooper ,
Which version of Office are you using?

Are you suing the Slice Timer Add-ins in your PowerPoint?
If so, could you please describe the full error message or share a screenshot of it with us?

The following is my test on Windows 10 with Microsoft® PowerPoint® for Microsoft 365 MSO (16.0.14026.20294) 64-bit.
When I tried to insert a timer from Slice Timer Add-ins, I received an Error message as shown below.

And based on the Error message, I found that the following three possible conditions may cause this error:

• The web app has reached a billing limit and your site has been disabled.
• The web app has been stopped in the portal.
• The web app has reached a resource quota limit that might apply to a Free or Shared scale service plan.

If the situation is the same as you encountered, I would suggest you go to Insert>Get Add-ins to find Slice Timer and click it(do not click Add), then click Reoprt this add-ins to submit your issue.

Any misunderstandings, please let me know.

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