Hi IVAN, the problem is only with this set "beg48060".
your link is still corrupted (?) from my computer,
but I succeeded to load it by copying another BEGEMOT instruction link and change the last # for 4860.
https://www.hobby.dn.ua/en/images/catalog/begemot/pdf/48060.pdf
Hi! If you do not see anything when press on Instructions tab then try different browser. Do you have this problem with another products on our site?