phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4a40176dd964dd4b4834d1997e79fdcf' 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 ('4a40176dd964dd4b4834d1997e79fdcf', -1, 1715338560, 1715338560, '12de7dab', -4, 0, 0)

Line : 187
File : sessions.php