phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a0e7720f651aeb76bc04a2e877cb98d9' 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 ('a0e7720f651aeb76bc04a2e877cb98d9', -1, 1776535150, 1776535150, 'd849d92f', -4, 0, 0)

Line : 187
File : sessions.php