Warning: session_write_close()

[theo]

Very!!!! strange PHP (PHP 7.2.11 ) error which appears only when using Opera Browser (so far) (Opera Version:56.0.3051.52)

Quote

Warning: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: /var/lib/php7) in Unknown on line 0

No Problem on Firefox or Chromium.

The message disappears, when I set "$config->debug = false;"

I know this is probably not worth investigating, but I wonder if anybody has seen this before and if it may have to do with PW.

Thank you.

P.S.

Quote

stat /var/lib/php7/
  Datei: '/var/lib/php7/'
  Größe: 74             Blöcke: 0          EA Block: 4096   Verzeichnis
Gerät: 26h/38d  Inode: 274708      Verknüpfungen: 1
Zugriff: (0755/drwxr-xr-x)  Uid: (   30/  wwwrun)   Gid: (    0/    root)
Zugriff    : 2018-11-11 11:16:26.885950196 +0100
Modifiziert: 2018-11-09 12:00:02.897898754 +0100
Geändert   : 2018-11-09 12:00:02.897898754 +0100