The pickup panel next to your checkout button comes from the Wybór Paczkomatu theme app embed.
Open Dashboard and look at Locker selection in cart under Operational status.
A badge of Inactive means the embed is off: press Enable in theme to jump to it in the theme editor.
On the General tab of Settings, the App activity card should show Active, with The app works in the store checked.
Switched off, both Settings and the dashboard say so.
The picker only shows for customers checking out from the country set on the Delivery country card; a different one removes it, unless your storefront cannot detect a country at all.
A cart with nothing that needs shipping, like digital-only products, gets no picker, and on a product page the panel only opens inside the cart drawer, never the page body, so a drawer-less theme needs the cart opened first.
Rules on the Pickup point visibility card silently remove both the picker and pickup delivery at checkout for a cart that breaks one of them. Try a plain, cheap, unrestricted item to rule this out.
Open Plans and look for the Limit reached badge.
Over your monthly order limit the picker stops showing for new customers; upgrading turns it back on immediately, since the check runs fresh on every storefront visit.
Test in a private window: a cached page is a common false alarm right after enabling the embed.
If the picker shows but pickup delivery is missing at checkout, read Pickup delivery is missing at checkout.
Add the post-purchase blocks too, so a missed pickup can still get its point.
Stuck on any of this? Open the chat in the bottom right corner of the app and we will help you set it up.