Lots of errors in log

[RobinEd]

Hi, in the error_log I get a whole string of errors, such as:

[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "trash_mbox" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "quota_zero_as_unlimited" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "log_driver" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "devel_mode" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "performance_stats" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "imap_auth_type" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "imap_auth_cid" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "imap_auth_pw" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "imap_debug" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "imap_force_caps" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "imap_disabled_caps" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210
[15-Sep-2025 13:29:24 UTC] PHP Warning: Undefined array key "imap_conn_options" in /usr/share/roundcube/plugins/hotkeys/hotkeys.php on line 210

(this is only a very short part of the list)
Is there a way to get rid of these errors?
Thanks!