phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a04919e05f0ce6723945b06e9c7e2301' 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 ('a04919e05f0ce6723945b06e9c7e2301', -1, 1758065670, 1758065670, 'd849d863', 13, 0, 0)

Line : 187
File : sessions.php