phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '310078967f7b3c8867e4e7e839540b82' 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 ('310078967f7b3c8867e4e7e839540b82', -1, 1771945374, 1771945374, 'd849d8dd', -9, 0, 0)

Line : 187
File : sessions.php