phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6a5a6a7b2c4cfba2ab76eb99d48e9620' 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 ('6a5a6a7b2c4cfba2ab76eb99d48e9620', -1, 1759090648, 1759090648, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php