phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a1e52c94f572fb9d93a1159e937cb6a9' 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 ('a1e52c94f572fb9d93a1159e937cb6a9', -1, 1791684144, 1791684144, 'd849d829', -4, 0, 0)

Line : 187
File : sessions.php