What on earth is wrtong with PhotoSync?

I have used PhotoSync with joy and gratitude for years, but the cuyrrent versions will not wotk between my phone and tablet, not between my phone and iMac, nor between any devices. It says it is “Pre[paring Sync” and “Transferring to[device]” but nothing happens and the sync eventually times out.

Gypsypriest about PhotoSync Companion