phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8040457757e14d8f4bda99e03870da46' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8040457757e14d8f4bda99e03870da46', -1, 1766146716, 1766146716, 'd849d819', 37, 0, 0)

Line : 187
File : sessions.php