phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5a6a24f15a74abb6d842632fa2d4349b' 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 ('5a6a24f15a74abb6d842632fa2d4349b', -1, 1771635803, 1771635803, 'd849d8ab', 1, 0, 0)

Line : 187
File : sessions.php