phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '672d48375f263715423ac1b9a85fadde' 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 ('672d48375f263715423ac1b9a85fadde', -1, 1771414968, 1771414968, 'd849d800', 9, 0, 0)

Line : 187
File : sessions.php