@Marc Stridgen I disabled the 'forms' addon but am still greeted by the same error as the OP when I try to copy a group..
So I'm not entirely sure what's causing it for me or how to solve it.
Error:
INSERT INTO `core_groups` ( `g_id`, `g_view_board`, `g_mem_info`, `g_use_search`, `g_edit_profile`, `g_edit_posts`, `g_delete_own_posts`, `g_use_pm`, `g_append_edit`, `g_access_offline`, `g_avoid_q`, `g_avoid_flood`, `g_icon`, `g_attach_max`, `prefix`, `suffix`, `g_max_messages`, `g_max_mass_pm`, `g_search_flood`, `g_edit_cutoff`, `g_photo_max_vars`, `g_dohtml`, `g_bypass_badwords`, `g_can_msg_attach`, `g_attach_per_post`, `g_dname_changes`, `g_dname_date`, `g_mod_preview`, `g_rep_max_positive`, `g_rep_max_negative`, `g_signature_limits`, `g_hide_online_list`, `g_bitoptions`, `g_pm_perday`, `g_mod_post_unit`, `g_ppd_limit`, `g_ppd_unit`, `g_displayname_unit`, `g_sig_unit`, `g_pm_flood_mins`, `g_max_bgimg_upload`, `g_post_polls`, `g_vote_polls`, `g_topic_rate_setting`, `g_bitoptions2`, `g_upload_animated_photos`, `g_view_displaynamehistory`, `g_hide_own_posts`, `g_lock_unlock_own`, `g_can_report`, `g_create_clubs`, `g_club_allowed_nodes`, `g_promote_exclude`, `g_close_polls`, `g_club_limit`, `group_id`, `g_fs_submit_wait`, `g_fs_bypass_captcha`, `g_fs_view_logs`, `g_fs_moderate_logs`, `g_fs_can_attach` ) VALUES ( NULL, 1, 1, 1, 1, '1', '0', 1, 0, 0, 0, 0, 'monthly_2021_09/member.png.4abba5e6e533cf3e6d4ec692b6bcd836.png', 0, '<span class="membertitle" style="color: #c4c4c4;"><img src="https://tarvos-gaming.com/media/member.png" width="14" alt="Registered Member"> ', '', -1, 100, 3, 0, '1000:500:500', 0, 0, 1, 50000, 0, 1, 0, -1, 10, '0:::::', 2, 26083328, -1, 0, 0, 0, 0, 0, 20, 4000, 0, 1, 0, 0, 1, 0, '0', '0', '1', 'public,open,closed,private', '*', 0, 0, NULL, 3, 600, 0, 0, 0, 1 )
IPS\Db\Exception: Unknown column 'group_id' in 'field list' (1054)
#0 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/system/Db/Db.php(938): IPS\_Db->preparedQuery('/*enricio384_fo...', Array)
#1 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/system/Patterns/ActiveRecord.php(487): IPS\_Db->insert('core_groups', Array)
#2 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/system/Patterns/ActiveRecord.php(438): IPS\Patterns\_ActiveRecord->save()
#3 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/system/Member/Group.php(200): IPS\Patterns\_ActiveRecord->__clone()
#4 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/applications/core/modules/admin/members/groups.php(416): IPS\Member\_Group->__clone()
#5 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/system/Dispatcher/Controller.php(90): IPS\core\modules\admin\members\_groups->copy()
#6 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/applications/core/modules/admin/members/groups.php(39): IPS\Dispatcher\_Controller->execute()
#7 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/system/Dispatcher/Dispatcher.php(153): IPS\core\modules\admin\members\_groups->execute()
#8 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/admin/index.php(13): IPS\_Dispatcher->run()
#9 {main}
Backtrace:
#0 /home/enricio384/domains/tarvos-gaming.com/public_html/forums/init.php(1015): IPS\_Log::log('INSERT INTO `co...', 'uncaught_except...')
#1 [internal function]: IPS\IPS::exceptionHandler(Object(IPS\Db\Exception))
#2 {main}
