phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6815e0f4e550b05950c53999528cc7a3' 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, is_robot) VALUES ('6815e0f4e550b05950c53999528cc7a3', -1, 1765829177, 1765829177, 'd849d89e', 0, 0, 0, '0')

Line : 187
File : sessions.php