phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'cdc736c95f3513b15501da8cab7db092' 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 ('cdc736c95f3513b15501da8cab7db092', -1, 1771041679, 1771041679, 'd849d88a', -4, 0, 0)

Line : 187
File : sessions.php