err_too_many_redirects with 4 virtualhosts using NGINX

I have migrated my 4 wordpress sites to a new instance (because i use AWS) with NGINX. Previously i used apache.
When i migrated these 4 sites, i configured their respective virtual hosts and everything.
Without doing any significant change to the configuration, the err_too_many_redirects error appeared.
The strange thing here is, this error happens in a certain hour of the day (generally, in the mornings), then the sites come back to normal.
With my team, we have tried everything to fix it: wp-config file, .htaccess file, checking the database, puting the define lines in the wp-config file, checking the NGINX configuration and nothing.