phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3b0af8f776a332aa8db2fda7c6c2ced6' 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 ('3b0af8f776a332aa8db2fda7c6c2ced6', -1, 1768237804, 1768237804, 'd849d8a2', -10, 0, 0)

Line : 187
File : sessions.php