phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f2cafd2b028eed85d9661b935dc5b1c5' 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 ('f2cafd2b028eed85d9661b935dc5b1c5', -1, 1757750070, 1757750070, 'd849d863', 2, 0, 0)

Line : 187
File : sessions.php