phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd51346b57146f0c09f94d15101859b4e' 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 ('d51346b57146f0c09f94d15101859b4e', -1, 1763211064, 1763211064, '126109ac', 0, 0, 0)

Line : 187
File : sessions.php