phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ef865dcb35154598ac7128e75e3e304e' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ef865dcb35154598ac7128e75e3e304e', -1, 1760394080, 1760394080, 'd849d829', -9, 0, 0)

Line : 187
File : sessions.php