At this time, many of the games available at uclickgames.com are no longer supported, and the site itself is slated to be merged into the PuzzleSociety.com.
The good news, is that games which have already made the switch, are supported and are available to both paid, and free users.
However, if you wish to continue to use Uclickgames.com, and are currently experiencing issues, here's a few things you can try.
You may need to visit the help file of your web-browser for instructions regarding these steps.
Please try clearing the cache / temporary files in your web-browser. You should then close your browser -> reopen your browser -> try accessing the content again. You may need to consult your web-browser's help file for instructions on doing this. There is also a helpful website at http://www.wikihow.com/Clear-Your-Browser%27s-Cache on doing this.
--you may need to update / install the Shockwave Player required to run the game. You can do this at http://get.adobe.com/shockwave/
--you should also update / install Adobe Flash by visiting http://get.adobe.com/flashplayer/
--your browser must be set to allow cookies.
--pop-up blockers and ad blockers can interfere with puzzles loading, so either turn these off or add the website to an allowed list.
--”Security” add-ons may also interfere and you should refer to the developer’s help files for further information.
If you complete each of these steps and are still unable to access the puzzle or are experiencing an issue with the puzzle, please visit http://www.puzzlesociety.com/ and see if the game you wish to play has already made the transition.