phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6a21a94dc4e6d8fbb0db747189e76a76' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6a21a94dc4e6d8fbb0db747189e76a76', -1, 1715249752, 1715249752, '12dc88a5', -11, 0, 0)

Line : 187
File : sessions.php