phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd0a59022a3d81b3494034c3efb4b53c4' 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 ('d0a59022a3d81b3494034c3efb4b53c4', -1, 1771021049, 1771021049, 'd849d88a', -4, 0, 0)

Line : 187
File : sessions.php