Erlang updates killed my ejabberd

jardell:~ # systemctl status ejabberd
● ejabberd.service - A distributed, fault-tolerant Jabber/XMPP server
   Loaded: loaded (/usr/lib/systemd/system/ejabberd.service; enabled; vendor preset: disabled)
   Active: active (exited) since Sun 2018-11-11 08:32:48 EST; 1h 47min ago
  Process: 4799 ExecStart=/usr/sbin/ejabberdctl start (code=exited, status=0/SUCCESS)
 Main PID: 2464 (code=exited, status=1/FAILURE)
    Tasks: 0 (limit: 4915)
   CGroup: /system.slice/ejabberd.service


Nov 11 08:32:48 jardell systemd[1]: Starting A distributed, fault-tolerant Jabber/XMPP server...
Nov 11 08:32:48 jardell systemd[1]: Started A distributed, fault-tolerant Jabber/XMPP server.

In the error log, I get

  port: 5222
  module: ejabberd_c2s
  certfile: "/etc/ejabberd/certs/jarfx.dyndns.org.pem"
  starttls: true
  max_stanza_size: 65536
  shaper: c2s_shaper
  access: c2s
- 
  port: 5269
  module: ejabberd_s2s_in
- 
  port: 5280
  module: ejabberd_http
  request_handlers: 
    "/websocket": ejabberd_http_ws
    "/web": mod_http_fileserver
  http_poll: true
  web_admin: true
  http_bind: true
  tls: true
  certfile: "/etc/ejabberd/certs/jarfx.dyndns.org.pem"
  captcha: true
2018-11-11 10:33:26.093 [error] <0.66.0>@ejabberd_config:start:88 Failed to load configuration file /etc/ejabberd/ejabberd.yml
2018-11-11 10:33:26.093 [critical] <0.66.0>@ejabberd_app:start:69 Failed to start ejabberd application: invalid_option

But the file ejabberd.yml is there:

/etc/ejabberd # ls -l
total 120
drwxr-xr-x 1 root     root       190 Jun 28 14:58 certs
-rw-r----- 1 ejabberd ejabberd 17337 Jul 19 14:49 ejabberd.yml
-rw-r----- 1 ejabberd ejabberd  5218 Nov 10 19:47 ejabberd.yml.rpmnew
-rw-r----- 1 ejabberd ejabberd 17050 Jun 16  2017 ejabberd.yml.rpmsave
-rw-r----- 1 ejabberd ejabberd 22655 Jun 28 14:40 ejabberd.yml.sav
-rw-r----- 1 ejabberd ejabberd 17290 Jul 19 13:48 ejabberd.yml~
-rw-r----- 1 ejabberd ejabberd  5731 Jun 27 15:54 ejabberdctl.cfg
-rw-r----- 1 ejabberd ejabberd  5753 Jun 30 18:35 ejabberdctl.cfg.rpmnew
-rw-r----- 1 ejabberd ejabberd  5732 Apr 18  2018 ejabberdctl.cfg~
-rw-r----- 1 root     ejabberd   111 Nov 10 19:47 inetrc

the etc/ejabberd permissions are:
drwxr-x— 1 root ejabberd 288 Nov 11 08:18 ejabberd
What has gone wrong?

Just a guess: Could it be your user needs to be a member of the ejabberd group ?