Using Ignite gallery and yootheme pro version 2.3.0 may produce a fatal php error that says "Error Too few arguments to function igalleryModelcategory"
Please update yootheme pro to version 2.3.5 to fix this issue.
As a temporary fix you can fix this error by going to your webhosting control panel, and edit the file:
on line 171 and 175 change "getPagination" to "gtPagination"
line 172 change "getPagination" to "gtPagination"