phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b77c343fced4854b3fa853c2c39db76a' 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 ('b77c343fced4854b3fa853c2c39db76a', -1, 1765285664, 1765285664, 'd849d8bc', -4, 0, 0)

Line : 187
File : sessions.php