phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8960db6647a33a6e1511042797d564b6' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8960db6647a33a6e1511042797d564b6', -1, 1714939736, 1714939736, 'c0a80201', -4, 0, 0)

Line : 187
File : sessions.php