phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ca97a8340f34aa10b52dd2cefa18a3a4' 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 ('ca97a8340f34aa10b52dd2cefa18a3a4', -1, 1794207458, 1794207458, 'd849d829', 15, 0, 0)

Line : 187
File : sessions.php