phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bebf15597e1d9d0db3e3b20a7640a5c9' 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 ('bebf15597e1d9d0db3e3b20a7640a5c9', -1, 1768647955, 1768647955, 'd849d8a2', -9, 0, 0)

Line : 187
File : sessions.php