phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78375f2f27dd79a8ad1d519f28f56331' 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 ('78375f2f27dd79a8ad1d519f28f56331', -1, 1756453885, 1756453885, 'd849d893', -9, 0, 0)

Line : 187
File : sessions.php