Why can't I withdraw tokens from farming, it writes about some blocking?

Yes, STON.fi offers liquidity pools with farming, where your LP tokens may be locked for a certain period of time. This lock period is clearly shown before you confirm the farming action.

You can always check whether a lock applies before providing liquidity:
On app.ston.fi, a warning message with the exact lock period for the selected pool will appear in the interface before you click the Farm button.

Additionally, you can stay up to date on LP token lock periods through our Telegram channel. Here’s an example for one of the pools:
https://t.me/stonfidex/959

If you have any further questions, feel free to reach out — we’re always happy to help.