Encountered error when installing PunBB

Hi,

I encountered the following error while installing PunBB. It's surprising because it says there is syntax error in in the installation file.

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Database reported: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'groups ( g_id INT(10) UNSIGNED AUTO_INCREMENT NOT NULL, g_title VARCHAR(50) NOT ' at line 1 (Errno: 1064).

Failed query: CREATE TABLE groups ( g_id INT(10) UNSIGNED AUTO_INCREMENT NOT NULL, g_title VARCHAR(50) NOT NULL DEFAULT '', g_user_title VARCHAR(50), g_moderator TINYINT(1) NOT NULL DEFAULT 0, g_mod_edit_users TINYINT(1) NOT NULL DEFAULT 0, g_mod_rename_users TINYINT(1) NOT NULL DEFAULT 0, g_mod_change_passwords TINYINT(1) NOT NULL DEFAULT 0, g_mod_ban_users TINYINT(1) NOT NULL DEFAULT 0, g_read_board TINYINT(1) NOT NULL DEFAULT 1, g_view_users TINYINT(1) NOT NULL DEFAULT 1, g_post_replies TINYINT(1) NOT NULL DEFAULT 1, g_post_topics TINYINT(1) NOT NULL DEFAULT 1, g_edit_posts TINYINT(1) NOT NULL DEFAULT 1, g_delete_posts TINYINT(1) NOT NULL DEFAULT 1, g_delete_topics TINYINT(1) NOT NULL DEFAULT 1, g_set_title TINYINT(1) NOT NULL DEFAULT 1, g_search TINYINT(1) NOT NULL DEFAULT 1, g_search_users TINYINT(1) NOT NULL DEFAULT 1, g_send_email TINYINT(1) NOT NULL DEFAULT 1, g_post_flood SMALLINT(6) NOT NULL DEFAULT 30, g_search_flood SMALLINT(6) NOT NULL DEFAULT 30, g_email_flood SMALLINT(6) NOT NULL DEFAULT 60, PRIMARY KEY (g_id) ) ENGINE = MyISAM CHARACTER SET utf8

The error occurred on line 327 in /var/www/html/punbb-1.4.5/include/dblayer/mysqli.php

I am using Ubuntu 20. I have installed PHP, sql-server and apache2.

Thanks for your help in advance.