I have fertilizer in my inventory, but when I try complete the green thumb quest I can't deliver it to the farmer, my character just says working on it.

I have a video this time https://www.youtube.com/watch?v=1L8YYDb6mec

funny the bug is part of the quest with the bugs main character image is not going away https://imgur.com/a/bug-ant-quest-ro5jmA4

I am stuck currently in the fence post using fast travel to the city. I am in the furthest NW post. No movement is allowed. I saved just before I realised what happened as a reflex of having done a lot of battles and teleporting away.

Hello, I want the first achievements in the game (like to have the secret gold) Can you explain how to proceed to restart completely? Thank you