phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8988cc15b76073af1fba9d7929ace77c' 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 ('8988cc15b76073af1fba9d7929ace77c', -1, 1715960958, 1715960958, '038ec9ce', -4, 0, 0)

Line : 187
File : sessions.php