Ts3 Client 64bit crashes after the start

hi there
one of my community members has a problem with teamspeak as follows…
the 64bit version was installed but bugged around ago with lagging etc
they uninstalled it… and installed it again (dont ask me… ^^)
since then it crashes after the start
the teamspeak window shows up and closes again after a few seconds… you cant interact with any of the menus or buttons

the 32bit version works flawlessly so far

what i tried to do to solve it per anydesk

  • run it as admin
  • run it in compatibility mode windows 7
    no luck
    so i uploaded some crashdumps… maybe someone can find out more about the problem