phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ff88c91f95d5e0c2dd25455e394c23b7' 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 ('ff88c91f95d5e0c2dd25455e394c23b7', -1, 1753012443, 1753012443, 'd849d8b1', -9, 0, 0)

Line : 187
File : sessions.php