phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9c15c9d405b5eef9097c9c3d347df7e2' 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 ('9c15c9d405b5eef9097c9c3d347df7e2', -1, 1714393024, 1714393024, '0391cea9', -11, 0, 0)

Line : 187
File : sessions.php