phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '227c4d00d0ed3d5941d4c767658c03f2' 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 ('227c4d00d0ed3d5941d4c767658c03f2', -1, 1770144263, 1770144263, 'd849d805', 2, 0, 0)

Line : 187
File : sessions.php