phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '56b60f2de6a2091a05617ffbccf9055e' 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 ('56b60f2de6a2091a05617ffbccf9055e', -1, 1768077476, 1768077476, 'd849d887', 2, 0, 0)

Line : 187
File : sessions.php