phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '935a79c89ea8cb3ef8e54a6f530acd54' 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 ('935a79c89ea8cb3ef8e54a6f530acd54', -1, 1768323694, 1768323694, 'd849d865', -9, 0, 0)

Line : 187
File : sessions.php