phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0f4a7ad5da6fbaac131e00c40ce37d27' 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 ('0f4a7ad5da6fbaac131e00c40ce37d27', -1, 1757623300, 1757623300, 'd849d822', -4, 0, 0)

Line : 187
File : sessions.php