phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4c197ce075889938c37c46fe144a1660' 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 ('4c197ce075889938c37c46fe144a1660', -1, 1767216676, 1767216676, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php