phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '64b93368e34f2a5d84b721058b4f514b' 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 ('64b93368e34f2a5d84b721058b4f514b', -1, 1756359136, 1756359136, 'd849d883', -4, 0, 0)

Line : 187
File : sessions.php