I am unable to send gift plants at present, my system crashed last week and when it was reinstated the fault occurred.  It happened a few years ago and I remember it had to do with cookies but don't remember how I put it right. Hope someone can help.

I copied this from the "Help" page:

I cannot "Publish To Profile" or "Send Gifts" or "Invite Friends"
If the publish/send gift/invite popups are not working for you, then it's likely that "Third Party Cookies" are being blocked by your browser (these are required in order for facebook.com features to work on the fairylandgame.com website)

To resolve the problem, check your browser settings either to ensure that third party cookies are allowed, or alternatively, add an "exception" to allow facebook.com

Here's how to do this in different browsers:

In Firefox:
Go to Tools/Options/Privacy and you should see the option for third party cookies, or to add an exception.

In Chrome:
Click the "wrench" icon, select "Under The Hood", "Content Settings", and ensure third party cookies are not blocked, or add an exception for facebook.com

In Internet Explorer:
Go to Tools/Internet Options/Privacy (you may also need to click the "Advanced" button)

(Some of the browser instructions are old; but, if those don't apply, you should be able to google it and find what you need. :) )

Thank you trying it now.  Not worked so far but my need to reboot my system to get it to take effect. Thank you again you have given me the right direction to go, chrome have changed their setting layout.