[TYPO3-english] YAG photogallery (galleria theme problem)

[jimmy shema]

dear member,

i have got a challenge with (YAG)Galleria image gallery theme, it shows up
in mozilla fire fox but does not in IE. it shows up an error says:

Your page is in Quirks mode, Galleria may not render correctly. Please
validate your HTML and add a correct doctype.

Fatal error: Your browser is in Quirks Mode, please add a correct doctype


Please advise me to how to handle it.

Thanks