Nextcloud 16 Centos 7.6.1810 new install php 7.3 onlyoffice issue

I am having issues with the onlyoffice integration with php7.3.

I did a new install of NC 16 and I am not able to connect to my document server. The old server I have NC 15 has no issue. I can’t even connect to the test onlyoffice in the settings page. Has anyone ran into this issue with php 7.3?

Log file from onlyoffice server out.log
out.log:[2019-09-15T21:03:23.088] [ERROR] nodeJS - error downloadFile:url=;attempt=3;code:UNABLE_TO_VERIFY_LEAF_SIGNATURE;connect:null;(id=conv_check_450898151_docx)

For anyone having this issue. I fixed it using the following steps.

Changed outbox to true in /etc/onlyoffice/documentserver/default.json
“token”: {
“enable”: {
“browser”: false,
“request”: {
“inbox”: false,

I also had to do the change to false
“rejectUnauthorized”: false

i also just installed Nextcloud 16 with Centos 7.6 fresh install and i have an issue with only office (installed on another machine), error message :
Server error: GET https://onlyoffice.local.lan/healthcheck resulted in a 502 Bad Gateway response: 502 Bad Gateway

502 Bad Gateway

ngin (truncated…) ).

do you have an idea ?
Maybe you could share with me your configuration files on each side ? (i’m going crazy i try to solve it since 1 week !)

Thanks for your help :crossed_fingers: