phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd525f2d091f5695e549c790db430e7b2' 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 ('d525f2d091f5695e549c790db430e7b2', -1, 1766218848, 1766218848, 'c0a8100c', -9, 0, 0)

Line : 187
File : sessions.php