phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a5a2cd352465cbf2fa9f73309093bd71' 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 ('a5a2cd352465cbf2fa9f73309093bd71', -1, 1762064466, 1762064466, 'd849d8a1', -4, 0, 0)

Line : 187
File : sessions.php