phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c640a5ebf775603b35b38b75b392bf8e' 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 ('c640a5ebf775603b35b38b75b392bf8e', -1, 1753256172, 1753256172, 'd849d81c', -1, 0, 0)

Line : 187
File : sessions.php