As far as I remember there have been some changes to lcdproc in LibreELEC since LE8. You could try to put your LCDd.conf into this directory (backup the default file first):
/storage/.kodi/addons/http://service.lcdd/config/LCDd.conf
Besides this... this should be the correct thread for lcdproc issues: thread-1930.html
Thank my friend, let me try 
Hi, friends
I did the instruction of HiassofT with a little bit of change:
+ in LCDd.conf, I changed the path like this (the driver folder of my Pi): DriverPath=/storage/lcdproc-0.5.7/lcdproc-0.5.7/server/drivers/
+ changed the I2C address: from 27 to 3f (my LCD 16x2 with that address)
+ change LCD size to: 16x2
the result is:
"Could not read config file: /etc/LCDd.conf
Critical error while processing settings, abort "
Anybody help on my fault.
I'm noob on this.
Thanks a lot,
