Ocsigen-start: js and css does not load deploying run.opt

Hi !
I run ocsigen-start on a remote server, and css/js files does not load if I deploy properly with

make all
sudo make install
sudo PATH=$PATH OCAMLPATH=$OCAMLPATH LD_LIBRARY_PATH=$LD_LIBRARY_PATH make run.opt

My browser console states:

Loading of <script> element with source "https://www.site.com/app_f...0.js" failed
Set of rules ignored because of bad selector
(+ cookie problem with Samesite attribute)

It really surprises me because with make test.byte, it works like a charm.
(And with sudo PATH=$PATH OCAMLPATH=$OCAMLPATH LD_LIBRARY_PATH=$LD_LIBRARY_PATH make run.byte, I get :

Fatal error: cannot load shared library dlllwt_unix_stubs
Reason: dlllwt_unix_stubs.so: cannot open shared object file: No such file or directory

)
Do you have an idea of what is my problem ?
(my setup is :
ubuntu18 LTS
ocaml 4.10.0
ocsigen-start 2.16.1
ocsigenserver 2.16.0
eliom 6.11.0)
Best !