Below is the Error Code
Exception Caught
SQLSTATE[42000]: Syntax error or access violation: 1072 Key column 'ics_url' doesn't exist in table:
CREATE TABLE IF NOT EXISTS exp_calendar_calendars
( id
INT(10) UNSIGNED NOT NULL AUTO_INCREMENT, site_id
INT(10) UNSIGNED DEFAULT NULL, name
VARCHAR(100) NOT NULL, url_title
VARCHAR(100) NOT NULL, color
VARCHAR(7) DEFAULT NULL, description
VARCHAR(300) DEFAULT NULL, ics_hash
VARCHAR(100) DEFAULT NULL, default
TINYINT(1) DEFAULT '0', PRIMARY KEY (id
), KEY site_id
(site_id
), KEY ics_url
(ics_url
) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB;
ee/legacy/database/drivers/mysqli/mysqli_connection.php:122