phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ca6c7e47aa1fd96bf4286c104fbf6e9e' 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 ('ca6c7e47aa1fd96bf4286c104fbf6e9e', -1, 1757557633, 1757557633, 'd849d822', -4, 0, 0)

Line : 187
File : sessions.php