phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '975c91f9770f98b3691717f8af9e8eff' 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 ('975c91f9770f98b3691717f8af9e8eff', -1, 1792684640, 1792684640, 'd849d872', 1, 0, 0)

Line : 187
File : sessions.php