Undefined array key "style"

[JulianAtkins]

Prerequisites

• I have searched for duplicate or closed issues
• I can recreate the issue with all plugins disabled

Describe the issue

Hello!

Every time I use roundcube, I get the following errors:

roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[18448]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[18448]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[18448]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[18448]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[2856]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192 
roundcube[18448]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192
roundcube[20098]: PHP Warning:  Undefined array key "style" in /home/webmail/public_html/program/actions/mail/index.php on line 1192

I am using version 1.6.9 with only the archive plugin, the elastic skin and the SQLite database.

What browser(s) are you seeing the problem on?

No response

What version of PHP are you using?

8.0.30

What version of Roundcube are you using?

1.6.9

JavaScript errors

No apparent errors.

PHP errors

Did not generate any log files, maybe because my log_driver is set to syslog.

[alecpl]

Duplicate of #9611.