Error shown while embedding the search into unity editor

Hi fellows,
I have been planning to create a database of online error code for unity 3D. This would be for the ease of people.
If they have any problems, they will submit their errors and will be given an error ID.
Then they will be given suggestions regarding their ID.
I am still thinking over it as to which platform should I use? Secondly, can anyone embed the search into unity editor?
When I try to do it , I get the following screen:

Your helpful suggestions are required in this matter.
Regards.
