What happens when you click OK? Does the project open? Is this issue happening with all projects or with a specific one? Are you on macOS or Windows? In which version of After Effects was this project created?
Hi Nishu! Thanks for the response. No the file is not opening even if I click ok. It was created on the latest 25.6 version. No on some specific AE files. Also I have tried creating a new file and dragging the file on the software to open. It is openning. But all the files are showing black. But all layer and keyframes are properly seen. I am working on MacOS only.