phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd6a7931262970e88b40ed13f3d92ce78' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('d6a7931262970e88b40ed13f3d92ce78', -1, 1762762369, 1762762369, 'd849d80d', 25, 0)

Line : 180
File : /www/includes/sessions.php