[Required gig title error]

Good day everyone.

Please I need help regarding my gig title. I was trying to create a new gig on "ebook writer".

While filling my gig title, I followed the rules and guidelines to avoid error response when saving the page but whenever I try to save the page I keep getting error reply that the gig title can only contain number and alphabet.

This is what I typed in the gig title

" ebook writer, ghost writing, ghostwriter, ebook writing, ebook"

Without "" sign and yet it is not saving.

Please what do I do to resolve this issue?

Thanks.