After effects Popping up this error message When i press twice U to reveal properties

[Mounish]

When i press U twice to reveal properties, i get this error message.I cant do anything except force quit application.Please help

[JohnColombo]

Hi @Mounish,

Thank you for reporting this issue. Does this occur in every project or only in specific ones? And what are your system specifications?

Thanks again for reporting this issue and for any further information you can provide, 
- John, After Effects Engineering Team  

[nishu_kush]

I'll move your post to the Discussions board while we await your information.

Thanks,

Nishu