You can try this. Change boot to use sd card as storage. Copy everything from usb stick to rpi's sd card in one folder. Format usb stick to ext4 and copy everything back from sd card. Check that permissions are right. Change boot to use usb storage. And reboot. If not do what you did first time.
Or just use le's backup & restore function.
And that's why you have this problem 
Do you have EXT4 filesystem on USB stick? If not I think this is a must.
In your log there are things like
Mar 02 18:26:45 LibreELEC sshd[8409]: @ WARNING: UNPROTECTED PRIVATE KEY FILE! @
Mar 02 18:26:45 LibreELEC sshd[8409]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Mar 02 18:26:45 LibreELEC sshd[8409]: Permissions 0777 for '/storage/.cache/ssh/ssh_host_rsa_key' are too open.
Mar 02 18:26:45 LibreELEC sshd[8409]: It is required that your private key files are NOT accessible by others.
Mar 02 18:26:45 LibreELEC sshd[8409]: This private key will be ignored.
Mar 02 18:26:45 LibreELEC sshd[8409]: Error loading host key "/storage/.cache/ssh/ssh_host_rsa_key": bad permissions
Mar 02 18:26:45 LibreELEC sshd[8409]: Could not load host key: /storage/.cache/ssh/ssh_host_rsa_key
Mar 02 18:26:45 LibreELEC sshd[8409]: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@meaning you have wrong permissions set. Maybe because of that ssh server doesn't start.
Are you using storage on USB disk maybe?
Tripayou, in your source file add |verifypeer=false at the end of the path. Like this for ftps
<path pathversion="1">ftps://user:pass@server/|verifypeer=false</path>Or add certificate to your LibreELEC system. Read here for a tips How to connect to Filezilla FTP over TLS server to stream music?
Anything involving Ace streams is piracy and falls on the wrong side of forum rules.
Ups, missed that 
Did you tried Requires= and Wants= in kodi.service?
Copy kodi service file
cp /usr/lib/systemd/system/kodi.service /storage/.config/system.d/and add AceProxy.service (or whatever name you have) to After= in /storage/.config/system.d/kodi.service. Or maybe Requires= (or both).
Try with
Requires=network-online.service
After=network-online.serviceI have usbreset binary if you really need it.
The problem was with old gpiozero version which requires setuptools on LE. And new version can work without. Will send PR so it can be fixed.
This is what you get with bumping packages blindly
Just because there is newer version it doesn't mean it works the same way as before. And of course no one actually do a test with new version. This was broken for more than 6 months.
My zip file virtual.rpi-tools-9.0.105.RPi2.zip contains gpiozero 1.5.0 which should not needed setuptools from Python. But it needs colorzero package (which is included in addon).
Uninstalling addon virtual.rpi-tools and install my version from ZIP should also work. Or just installing. So many options 
But colorzero folder is missing.
do i need to restore something after a while if i try your dirty fix?
rm -fr /storage/.kodi/addons/repository.libreelec.tv/Under lib folder you should have folder gpiozero and colorzero after unpacking my zip file. You should just unpack zip and overwrite old files.
unzip virtual.rpi-tools-9.0.105.RPi2.zip -d /storage/.kodi/addonsI made a mistake with a command before. Sorry.
Sadly I don't own RPi to actually test it 
Probably not correct way but it works. Run this commands in SSH console and you will be able to install addons.
cp -a /usr/share/kodi/addons/repository.libreelec.tv/ /storage/.kodi/addons/
sed -i 's|9.1|9.0|g' /storage/.kodi/addons/repository.libreelec.tv/addon.xml
systemctl restart kodiBetter would be to set links on web server where addons are stored (9.1 -> 9.0).
Seems gpiozero needs setuptools package which is not present on LE.
Can you try this version with gpiozero 1.5.0? virtual.rpi-tools-9.0.105.rpi2.zip
wget -O virtual.rpi-tools-9.0.105.RPi2.zip http://vpeter.libreelec.tv/RPi2/virtual.rpi-tools-9.0.105.RPi2.zip
unzip virtual.rpi-tools-9.0.105.RPi2.zip -d /storage/.kodi/addons