I will try to help. First of all: it will help to read the red messages that apear after clicking on something and then decide what to do next.
Display Spoiler
It may be, that I don't use the exact words of the game messages, because I read them in german and in addition didn't safe screenshots.
So this is only a roughly summery of the story:
1. click on the gost: "You can't touch the gost. You need something sticky."
...click on the bat: "The bat is flying hungily around."
2. click on the spider, which is sitting in the web at the flowergame-logo (top of the page, left bottom of the logo): "The web is sticky, but a spider is still in it."
3. click on the bat: "The bat eats the spider, the web is free now."
4. click on the gost: "You still can't touch the gost. You need something to shoo him inside the web."
5. click on the bat: " You push the bat with a stick. It is flying around and is screaming.
=> The gost is horrified and fly away. If the gost is roughly between bat and web, it will fly into the web and stick.
I hope it will work for you.