JabRef 5.1 Release

I am really excited to practice it.
However, after I downloaded and installed it, the application fails to open on Win 10 64-bit. It seems to start to open (the mouse turns into a donut) then suddenly closes before opening the window.

I tried to follow some advice such as this one: Unable to start Jabref on Windows 10 And this one: JabRef not opening But it seems that the folder structure is significantly different in the new version.
Could you assist me how to correct this issue? Given that there has been a functioning installation but the new update didn’t work.
Many thanks in advance,
Mazen