phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8a7949a978f252dce6b902d4718cfdfb' 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 ('8a7949a978f252dce6b902d4718cfdfb', -1, 1715759698, 1715759698, '03931cca', -1, 0, 0)

Line : 187
File : sessions.php