phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '96e2a1700773897a031825a1b49eea8e' 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 ('96e2a1700773897a031825a1b49eea8e', -1, 1768191844, 1768191844, 'd849d8a2', -10, 0, 0)

Line : 187
File : sessions.php