Make sure you have a working network connection, by selecting the "Wait for network" option in the LibreELEC Settings Add-on, and reboot.
You may also have to refresh the Kodi repository (one time) before the newest add-ons/updates come through.
thx, i tried "wait for networ"
how do to refresh kodi repository?
Another problem, i reboor lebreelec, while started see this error:
"Failed to star setup user config dir"
and after run kodi