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While rest of the website were working fine and while accessing my email account via auto-login
it was showing an error Database error connection failed
Please contact server administrator
After checking the logs in /usr/local/cwpsrv/var/services/roundcube/logs/errors.log
found the error due to missing table roundcube.carddav_addressbook
18-Jun-2026 19:39:09 +0000]: <3c79m5k8> DB Error: [1146] Table ’roundcube.carddav_addressbooks’ doesn’t exist (SQL Query: SELECT * FROM carddav_addressbooks WHERE ((user_id = ‘3’))) in /usr/local/cwpsrv/var/services/roundcube/program/lib/Roundcube/rcube_db.php on line 543 (GET /?_task=mail&_token=tee6Pl7prS5tNWlXRyKRmdBY6p2cXU3o)
[18-Jun-2026 19:39:09 +0000]: <3c79m5k8> DB Error: [1146] Table ’roundcube.carddav_addressbooks’ doesn’t exist (GET /?_task=mail&_token=tee6Pl7prS5tNWlXRyKRmdBY6p2cXU3o)
logged into Mysql and went to roundcube database
[root@ok1129 ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 52184
Server version: 10.4.34-MariaDB MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.
MariaDB [(none)]> use roundcube;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
Created the 2 missing tables using below commands
Database changed
MariaDB [roundcube]> CREATE TABLE IF NOT EXISTS carddav_addressbooks (
-> id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
-> user_id INT(10) UNSIGNED NOT NULL,
-> name VARCHAR(255) NOT NULL,
-> url VARCHAR(255) NOT NULL,
-> username VARCHAR(255) DEFAULT NULL,
-> password VARCHAR(255) DEFAULT NULL,
-> active TINYINT(1) NOT NULL DEFAULT 1,
-> PRIMARY KEY (id),
-> CONSTRAINT fk_carddav_addressbooks_user_id FOREIGN KEY (user_id) REFERENCES users(user_id) ON DELETE CASCADE ON UPDATE CASCADE
-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
Query OK, 0 rows affected (0.016 sec)
MariaDB [roundcube]> CREATE TABLE IF NOT EXISTS carddav_accounts (
-> id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
-> user_id INT(10) UNSIGNED NOT NULL,
-> name VARCHAR(255) NOT NULL,
-> discovery_url VARCHAR(255) NOT NULL,
-> username VARCHAR(255) DEFAULT NULL,
-> password VARCHAR(255) DEFAULT NULL,
-> active TINYINT(1) NOT NULL DEFAULT 1,
-> PRIMARY KEY (id),
-> CONSTRAINT fk_carddav_accounts_user_id FOREIGN KEY (user_id) REFERENCES users(user_id) ON DELETE CASCADE ON UPDATE CASCADE
-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
Query OK, 0 rows affected (0.012 sec)
MariaDB [roundcube]> exit
Bye
This fixed the issue and Roundcube was working perfectly fine