phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2151bcb75e495783d366811f39fc1f39' 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 ('2151bcb75e495783d366811f39fc1f39', -1, 1757332390, 1757332390, 'd849d80b', -9, 0, 0)

Line : 187
File : sessions.php