It seems I'm a little bit late can I get this new build this might be the issue that is why it doesn't work?
PM the link or the link posted above by DireWolfM14 is the one you use?

And I need a new copy because the last build(February build) is accidentally deleted with my Kaspersky antivirus(I don't know why but the January build detected as fine.).

And let me ask if what will happen if I close my open channel? What will happen to my test coins?