could not share ipad from ubuntu to macOS

I used server ubuntu 18.04 x64, VirtualHereUSB Server v3.8.3 and client macOS mojave , VirtualHereUSB Client version 4.6.7

Mar 6 09:04:50 ubuntu vhusbserver[31172]: >>> Starting VirtualHere USB Server v3.8.3 (Built: Mar 4 2019, 18:32:54)<<<
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Using configuration /usr/bin/config.ini
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Server licensed to=unlicensed max_devices=1
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Using large URB's
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Listening on all network interfaces at TCP port 7575
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Found Full speed device [047f:c013] "Plantronics, Plantronics .Audio 648 USB" at address 114
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Found Low speed device [046d:c05b] "Logitech, USB Optical Mouse" at address 17
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Found High speed device [046d:082b] " , Webcam C170" at address 110
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Found Full speed device [046d:c52b] "Logitech, USB Receiver" at address 113
Mar 6 09:04:50 ubuntu vhusbserver[31172]: Found High speed device [05ac:12ab] "Apple Inc., iPad" at address 14
Mar 6 09:04:55 ubuntu vhusbserver[31172]: Call to syncSetConfig 5 Failed with err 1 (Operation not permitted)

Mar 6 09:05:14 ubuntu vhusbserver[31172]: 10.31.30.61 connected as connection 1
Mar 6 09:05:19 ubuntu vhusbserver[31172]: Call to syncSetConfig 5 Failed with err 1 (Operation not permitted)
Mar 6 09:05:19 ubuntu vhusbserver[31172]: Executed "" for onReset.05ac.12ab
Mar 6 09:05:19 ubuntu vhusbserver[31172]: Device 14 [05ac:12ab] BOUND to connection 1
Mar 6 09:05:20 ubuntu vhusbserver[31172]: Executed "" for onReset.05ac.12ab
Mar 6 09:05:24 ubuntu vhusbserver[31172]: Device 14 [05ac:12ab] UNBOUND from connection 1

Mar 6 09:05:30 ubuntu vhusbserver[31172]: Call to syncSetConfig 5 Failed with err 1 (Operation not permitted)
Mar 6 09:05:30 ubuntu vhusbserver[31172]: Executed "" for onReset.05ac.12ab
Mar 6 09:05:30 ubuntu vhusbserver[31172]: Device 14 [05ac:12ab] BOUND to connection 1
Mar 6 09:05:30 ubuntu vhusbserver[31172]: Executed "" for onReset.05ac.12ab

#2

that is expected, you cannot share an iPAD between linux/windows server and OSX

you can only use an iDevice between:

Server->Clients
--------------------
Linux->Linux/Windows
OSX->OSX
Windows->Linux/Windows