phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7878f884bd8d208a6290c99d0a65dc76' 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 ('7878f884bd8d208a6290c99d0a65dc76', -1, 1714212775, 1714212775, '0390f818', -8, 0, 0)

Line : 187
File : sessions.php