phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '715d375863a07e8ed5edaa3aad52f9df' 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 ('715d375863a07e8ed5edaa3aad52f9df', -1, 1714400189, 1714400189, '03111c30', -4, 0, 0)

Line : 187
File : sessions.php