phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b9cdfa6d368d8be85efc02ea42dd0f1c' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b9cdfa6d368d8be85efc02ea42dd0f1c', -1, 1715204468, 1715204468, '12dd0dad', 0, 0, 0)

Line : 187
File : sessions.php