phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd15017456131d9fe7732a2d7c515c70b' 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 ('d15017456131d9fe7732a2d7c515c70b', -1, 1756915975, 1756915975, 'd849d865', -9, 0, 0)

Line : 187
File : sessions.php