phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78a715aff3fdaf542cd6b687ab626eeb' 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 ('78a715aff3fdaf542cd6b687ab626eeb', -1, 1715152146, 1715152146, '12df7cf4', 4, 0, 0)

Line : 187
File : sessions.php