phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '51bd9df5fbe3bc65e1cc7656ab251f1b' 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 ('51bd9df5fbe3bc65e1cc7656ab251f1b', -1, 1752403693, 1752403693, 'd849d8ee', -12, 0, 0)

Line : 187
File : sessions.php