phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b53566e5bc6ba01df78547a9c6c38615' 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 ('b53566e5bc6ba01df78547a9c6c38615', -1, 1769300052, 1769300052, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php