phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'cefa15fb406be43ca2c7af8da5544e78' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cefa15fb406be43ca2c7af8da5544e78', -1, 1715902363, 1715902363, '12754a2c', 5, 0, 0)

Line : 187
File : sessions.php