Thanks for bringing this forward here in the Community, taha5.
I'm happy to point you in the right direction so you're able to reconnect with your app in QuickBooks Online.
There have been a few other reports of QuickBooks users currently having issues with the Make(.com) integration. I recommend reaching out to a member of the QuickBooks Online Support Team so you can be added to the list of affected companies. Once you're added you'll receive email updates regarding the resolution. Here's how to get in touch with the team:
1. Sign in to QuickBooks Online.
2. Choose (?) Help.
3. Select the Assistant tab and enter Talk to an Expert.
4. Or click the Search tab and choose Contact Us.
The following article provides these steps if you ever need them again in the future: Get help with QuickBooks products and services.
Please feel free to reach back out if you have any other questions. The Community always has your back!
