If you can fix the issue using PhpMyadmin.
– Go to administrator->site -> global configuration -> server, you can see “Database name” and “Database Tables Prefix” as per screen short:
– Go to PhpMyadmin, select such database name
– Replace “#__jacomment_items” “{Database Tables Prefix}jacomment_items” and run sql query :
ALTER TABLE `#__jacomment_items` ADD `children` INT( 11 ) DEFAULT '0' AFTER `date_active`;
ALTER TABLE `#__jacomment_items` ADD `active_children` INT( 11 ) DEFAULT '0' AFTER `children`;
ALTER TABLE `#__jacomment_items` ADD `p0` INT( 11 ) DEFAULT '0' AFTER `active_children`;
ALTER TABLE `#__jacomment_items` CHANGE `referer` `referer` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '';
ALTER TABLE `#__jacomment_items` ADD `latitude` CHAR(255) COLLATE utf8_general_ci NULL DEFAULT NULL AFTER `p0`;
ALTER TABLE `#__jacomment_items` ADD `longitude` CHAR(255) COLLATE utf8_general_ci NULL DEFAULT NULL AFTER `latitude`;
ALTER TABLE `#__jacomment_items` ADD `address` TEXT COLLATE utf8_general_ci NULL DEFAULT NULL AFTER `longitude`;
If you need help on this, please PM me admin and FTP credentials of your site, I’ll fix it for you.