problems accessing files on external hdd mac os SIERRA

i have 2 external HDD’s plugged directly into KODI that i access via OSMC on my mac. it worked fine yday, as of today, i cant access the HDD’s. i see them, but keep getting that here is a problem connecting to the server, no shares available or thatim not allowed to access them on the server? i have tried unplugging, removing them safely, rebooting the raspberry and the mac. i can play the files on the hdd’s on the raspberry without a problem. i have the latest version of kodi, everything is up to date. what can have happend and how do i fix this?