phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ab1f58b9af16d3578868b268e9e895d7' 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 ('ab1f58b9af16d3578868b268e9e895d7', -1, 1769507007, 1769507007, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php