When creating a donation page for pages you will select a Fund that the donations will be recorded and tied to. This Fund is what will populate the giving options for the page, via the Ask Array attached to the Fund.
If you have a fundraising page that has no options presented for giving, this is due to the Fund not having an Ask Array assigned to it, or the Ask Array lacking any options.
To correct this, please configure an Ask Array and configure the Fund to make use of this ask array.
Below are the tutorials for both topics
Configure Ask Array: http://support.fundly.com/hc/en-us/articles/206316437-Configuration-Funds-Version-2-
Configure Funds: http://support.fundly.com/hc/en-us/articles/206316377-Configuration-Ask-Array-Version-2-