Hi there!
In case your question/issue hasn't been resolved yet I'll make a quick response. (Also for the other people reading this in the future

)
When removing the villager/shop it does not give a spawn egg. To place a villager again you'd have to use the wheel (bedrock) or end crystal (java), which are in your 9th profile slot. From here on out its pretty clear.
- For bedrock you'd need to scroll to the bottom where there is a button called "place a shop".
- On Java this button is at the bottom left and looks like a spawn egg.
If you however don't have the wheel/end crystal please search for another shop nearby in which you can enable this in your settings (player settings can be found under the 'profiles' button for bedrock players) .
(If you cant find a villager nearby type /skyblock hub, and find your way over to the profile npc, here you can enable the 9th slot as well)
~Xavi | GoofyUnity