phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '55d52a28fd58d24456247ce73de52b03' 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 ('55d52a28fd58d24456247ce73de52b03', -1, 1763264135, 1763264135, 'd849d830', -9, 0, 0)

Line : 187
File : sessions.php