phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'da5c4d07e733725c3e8baf0786f38f79' 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 ('da5c4d07e733725c3e8baf0786f38f79', -1, 1770360709, 1770360709, 'd849d868', 4, 0, 0)

Line : 187
File : sessions.php