PHP error occurred when editing text

[Bables55]

Steps to reproduce

1.Create new text file or Open existing text file. 2.Edit a little 3.View administrator logging of the settings.

Expected behaviour

No error is output.

Actual behaviour

An error is output by PHP and files-texteditor. *This did not occur before ver.12.0.2.

Server configuration

Operating system: CentOS 7.3 Web server: nginx 1.11.13 Database: MariaDB 5.5.56 PHP version: 7.1.9 Nextcloud version: (see Nextcloud admin page) 12.0.3 Where did you install Nextcloud from: I downloaded the source from nextcloud.com.

List of activated apps:

  - activity: 2.5.2
  - admin_audit: 1.2.0
  - apporder: 0.4.0
  - bruteforcesettings: 1.0.2
  - calendar: 1.5.5
  - comments: 1.2.0
  - contacts: 1.5.3
  - dav: 1.3.0
  - deck: 0.2.2
  - encryption: 1.6.0
  - federatedfilesharing: 1.2.0
  - federation: 1.2.0
  - files: 1.7.2
  - files_automatedtagging: 1.2.2
  - files_clipboard: 0.6.4
  - files_external: 1.3.0
  - files_pdfviewer: 1.1.1
  - files_sharing: 1.4.0
  - files_texteditor: 2.4.1
  - files_trashbin: 1.2.0
  - files_versions: 1.5.0
  - files_videoplayer: 1.1.0
  - gallery: 17.0.0
  - logreader: 2.0.0
  - lookup_server_connector: 1.0.0
  - mail: 0.7.3
  - nextcloud_announcements: 1.1
  - notes: 2.3.1
  - notifications: 2.0.0
  - oauth2: 1.0.5
  - password_policy: 1.2.2
  - provisioning_api: 1.2.0
  - ransomware_protection: 1.0.4
  - richdocuments: 1.12.34
  - serverinfo: 1.2.0
  - sharebymail: 1.2.0
  - sharepoint: 1.0.2
  - survey_client: 1.0.0
  - systemtags: 1.2.0
  - tasks: 0.9.5
  - theming: 1.3.0
  - twofactor_backupcodes: 1.1.1
  - updatenotification: 1.2.0
  - workflowengine: 1.2.0
Disabled:
  - bookmarks
  - firstrunwizard
  - user_external
  - user_ldap

Nextcloud configuration:

<?php
$CONFIG = array (
  'instanceid' => 'oc91??????',
  'passwordsalt' => 'PASSWORDSALT',
  'secret' => 'SECRET',
  'trusted_domains' => 
  array (
    0 => 'MY-DOMAIN',
  ),
  'datadirectory' => '/NEXTCLOUD/data',
  'overwrite.cli.url' => 'https://MY-DOMAIN',
  'dbtype' => 'mysql',
  'version' => '12.0.3.3',
  'dbname' => 'NC-DB',
  'dbhost' => 'localhost:3306',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'mysql.utf8mb4' => true,
  'dbuser' => 'NC-DBUSER',
  'dbpassword' => 'DBPASSWORD',
  'installed' => true,
  'log_type' => 'owncloud',
  'logfile' => 'nextcloud.log',
  'loglevel' => 3,
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'filelocking.enabled' => true,
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => 'localhost',
    'port' => 6379,
    'password' => 'PASSWORD',
  ),
  'mail_smtpmode' => 'smtp',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtpsecure' => 'ssl',
  'mail_from_address' => 'MAILNAME',
  'mail_domain' => 'MAILDOMAIN',
  'mail_smtpauth' => 1,
  'mail_smtphost' => 'smtp.MAILDOMAIN',
  'mail_smtpport' => '465',
  'mail_smtpname' => 'MAILADDRESS',
  'mail_smtppassword' => 'MAILPASSWORD',
  'maintenance' => false,
  'auth.bruteforce.protection.enabled' => false,
  'versions_retention_obligation' => '7,auto',
  'trashbin_retention_obligation' => 'auto',
  'enabledPreviewProviders' => 
  array (
    0 => 'OC\\Preview\\PNG',
    1 => 'OC\\Preview\\JPEG',
    2 => 'OC\\Preview\\GIF',
    3 => 'OC\\Preview\\BMP',
    4 => 'OC\\Preview\\XBitmap',
    5 => 'OC\\Preview\\MP3',
    6 => 'OC\\Preview\\TXT',
    7 => 'OC\\Preview\\MarkDown',
  ),
  'defaultapp' => 'mail',
);

Client configuration

Browser: Firefox or Vivaldi Operating system: Windows 10 64bit Pro/Home

Logs

Nextcloud log (data/owncloud.log)

Error | files_texteditor | File: /Notes/SAMPLE.txt modified since opening.
Error | PHP | call_user_func() expects parameter 1 to be a valid callback, class 'OCA\Richdocuments\Storage' not found at /NEXTCLOUD/lib/private/legacy/hook.php#106

(*The following may not be related)
Error | appstoreFetcher | GuzzleHttp\Exception\ConnectException: cURL error 28: Operation timed out after 10000 milliseconds with 0 out of 0 bytes received

> Error | files_texteditor | File: /Notes/SAMPLE.txt modified since opening.
This is a considerable amount in a row. Perhaps there is an automatic save.

[jm009]

What do you mean by "3.View administrator logging of the settings."? Do you mean "View the log file"?

"OCA\Richdocuments\Storage" sounds like a handler for rich text documents (.rtf). I wonder, why such a special handler is used...

Why do you have 'log_type' => 'owncloud' in your config.php?

And how can it be, that you have 'logfile' => 'nextcloud.log' in your config.php, but then below you write "data/owncloud.log"?

Sorry for asking all these questions, they are just for clarification. Disclaimer: I am not yet familiar with the texteditor code.

[Bables55]

I have updated to Nextcloud 13.0.2 now. Now the above error hasn't occurred.