Erreur pendant l'installation de Roundcube/Error while installing Roundcube

[Aleks]

@vlotho

found character '\\t' that cannot start any\
  \ token\n  in \"<string>\", line 2, column 1:\n    \t\"theme\" : \"clouds\"\n  \
  \  ^)"

You have a tabulation (instead of space) in your /etc/ssowat/conf.json.persistent