phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '50c2f22005b56a76fad60f2322fc0f26' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('50c2f22005b56a76fad60f2322fc0f26', -1, 1784301088, 1784301088, 'd849d8f9', -10, 0, 0)

Line : 187
File : sessions.php