Error 13, permission denied

hello, I have nginx container with this configuration:
nginx.conf :

mydomain.nginx.conf :
#-- mode: nginx --
#Auto generated at 05/27/2020 12:32:19
server {
#if ($host = mydomain.com) {
#return 301 https://$host$request_uri;
#} # managed by Certbot

listen 80;
#listen 8000;

#listen 10001;

listen       [::]:80;

server_name  mydomain.com;
server_tokens off;
root         /usr/share/nginx/html;

location /seafile {
	proxy_pass http://172.19.0.4:8000;
	proxy_read_timeout 310s;
	proxy_set_header Host $host;
	#proxy_set_header Forwarded for=$remote_addr; proto=$scheme;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header X-Forwarded-Proto $scheme;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header Connection "";
	proxy_http_version 1.1;

	client_max_body_size 0;
	#access_log      /var/log/nginx/seahub.access.log seafileformat;
	error_log       /var/log/nginx/seahub.error.log;
	
}

location /seafhttp {
	rewrite ^/seafhttp(.*)$ $1 break;
	proxy_pass http://172.19.0.4:8082;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	client_max_body_size 0;
	proxy_connect_timeout  36000s;
	proxy_read_timeout  36000s;
	proxy_request_buffering off;
	#access_log      /var/log/nginx/seafhttp.access.log seafileformat;
	error_log       /var/log/nginx/seafhttp.error.log;
}

 location /seafdav {
	proxy_pass  http://172.19.0.4:8080;
    proxy_read_timeout 310s;
	proxy_set_header Host $host;
	#proxy_set_header Forwarded for=$remote_addr; proto=$scheme;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header X-Forwarded-Proto $scheme;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header Connection "";
	proxy_http_version 1.1;

    # This option is only available for Nginx >= 1.8.0.
    client_max_body_size 0;
   # proxy_request_buffering off;

    access_log      /var/log/nginx/seafdav.access.log;
    error_log       /var/log/nginx/seafdav.error.log;
}

location /seafmedia {
    rewrite ^/seafmedia(.*)$ /media$1 break;
	root /opt/seafile/seafile-server-7.1.4/seahub;
}
location ~ (css|js|img) {
   root   /opt/seafile/seafile-server-7.1.4/seahub;
  try_files $uri $uri/ =404;
}

 error_page   500 502 503 504  /50x.html;
location = /50x.html {
    root   /usr/share/nginx/html;
	}

}
server{
listen 443 ssl;
listen [::]:443;
#listen 10001;
server_name mydomain.com;
server_tokens off;
ssl_certificate /etc/letsencrypt/live/vos-livrets.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/vos-livrets.com/privkey.pem; # managed by Certbot
root /usr/share/nginx/html;

location /seafile {
	proxy_pass http://172.19.0.4:8000;
	proxy_read_timeout 310s;
	proxy_set_header Host $host;
	#proxy_set_header Forwarded for=$remote_addr; proto=$scheme;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header X-Forwarded-Proto $scheme;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header Connection "";
	proxy_http_version 1.1;

	client_max_body_size 0;
	access_log      /var/log/nginx/seahub.access.log;
	error_log       /var/log/nginx/seahub.error.log;
}

	location /seafhttp {
	rewrite ^/seafhttp(.*)$ $1 break;
	proxy_pass http://172.19.0.4:8082;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	client_max_body_size 0;
	proxy_connect_timeout  36000s;
	proxy_read_timeout  36000s;
	proxy_request_buffering off;
	access_log      /var/log/nginx/seafhttp.access.log;
	error_log       /var/log/nginx/seafhttp.error.log;
}

 location /seafdav {
	proxy_pass  http://172.19.0.4:8080;
    proxy_read_timeout 310s;
	proxy_set_header Host $host;
	#proxy_set_header Forwarded for=$remote_addr; proto=$scheme;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header X-Forwarded-Proto $scheme;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header Connection "";
	proxy_http_version 1.1;

    # This option is only available for Nginx >= 1.8.0.
    client_max_body_size 0;
   # proxy_request_buffering off;

    access_log      /var/log/nginx/seafdav.access.log;
    error_log       /var/log/nginx/seafdav.error.log;
}

location /seafmedia {
    rewrite ^/seafmedia(.*)$ /media$1 break;
	#proxy_pass http://172.19.0.4:8082; 
	root /opt/seafile/seafile-server-7.1.4/seahub;
	
}
location ~ (css|js|img) {
	root /opt/seafile/seafile-server-7.1.4/seahub;
	try_files $uri $uri/ =404;
}

error_page 500 502 503 504 /50x.html;

location = /50x.html {

root /usr/share/nginx/html;

}

client_max_body_size 10m;

For letsencrypt

location /.well-known/acme-challenge/ {
	alias /var/www/challenges/;
	try_files $uri =404;
}

}

my resource files are in my seafile container, they have all the rights,
but in my nginx error log I have this for all ressoruces files:

maybe it’s a user error, i’m not sure, if someone can help me please
ty