phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e040f9214384e55d7fe8d4bdb8ee9641' 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 ('e040f9214384e55d7fe8d4bdb8ee9641', -1, 1781116806, 1781116806, 'd849d8cc', -4, 0, 0)

Line : 187
File : sessions.php