phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5863172ce7d908608c1a505d33b831d9' 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 ('5863172ce7d908608c1a505d33b831d9', -1, 1766468787, 1766468787, 'd849d819', 13, 0, 0)

Line : 187
File : sessions.php