programyzadarmo.net.pl very slow freezed, what happen?

[monstertruckpa]

Is a Polish website with others giveaway, but it's super slow.
https://programyzadarmo.net.pl/

takes one minute to open each link, even they erase comments, my messages were deleted, I think they have been very arbitrary.
can someone confirm it?

Everything is fine for me. No such problems.

Only happens when register you and navigate with the account, Not when you enter as a visitor.