phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8caa18da769b8bc60eea1e735a56fbb0' for key 'sgf_sessions.PRIMARY'

INSERT INTO sgf_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8caa18da769b8bc60eea1e735a56fbb0', -1, 1739108386, 1739108386, '1276955e', 21, 0, 0)

Line : 183
File : sessions.php