phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '121715cae509ef6edbd8fc21783e4817' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('121715cae509ef6edbd8fc21783e4817', -1, 1715252262, 1715252262, '12da9c23', -8, 0, 0)

Line : 187
File : sessions.php