You are trying to import Wrike data into Office Timeline, but you are unable to connect to Wrike from the PowerPoint add-in.
Wrike has recently made some changes to the way other applications can connect to their tool. These changes have been addressed in Office Timeline 3.63.00 to ensure users can still import their data from Wrike.
Making sure you have Office Timeline version 3.63.00 or newer should solve the connectivity issue.
To check what version you have, open PowerPoint and, on the Office Timeline ribbon, click on Help > About.
If you don't have version 3.63.00 or greater, go to https://www.officetimeline.com/updates and install the latest build.
Try importing from Wrike again.
If you are still unable to import from Wrike, please contact us by clicking the Submit a ticket button at the bottom of this page – our friendly support representatives will be happy to help.