Share photo date error 01.01.1970

I have a problem in my dolphin 7.3.3
At the moment when I share someone's photo

I show the main page in "recent" - share date is 01.01.1970

What could be a problem and how to fix it?

At the moment of making available on the user's wall an entry appears ...

somebody help?

Could you try to reproduce the problem on demo.boonex.com ?

No problem on the demo site also these errors occur

Share any photo and look "More" in Outline and bottom is error

and wall in profile is error date:

I can't reproduce the issue, please could you describe in details how to reproduce it ?

Go to any photos on profile and repost this photo and look in outline button "Load more" on the bottom is date 1970

Thank you.

Finally I was able to reproduce the problem:

https://github.com/boonex/dolphin.pro/issues/587