phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '21e9d53f9e67d70fe6f7862b6da7c05e' 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 ('21e9d53f9e67d70fe6f7862b6da7c05e', -1, 1714343376, 1714343376, '0390caa7', 16, 0, 0)

Line : 187
File : sessions.php