Errors on dalivery App IOS to Apple store

Dear Community,
Please help to fix it, when I upload IOS App to the Apple store its show these warning:
"WARNING ITMS-90176: “Unrecognized Locale - The locale names used in localization directories at ( “Payload/khmer_Bible-2.0.5.app/custom.lproj” ) are invalid. iTunes supports BCP47 but not the UN M.49 specification. Refer to the Language and Locale Designations guide at https://developer.apple.com/library/content/documentation/MacOSX/Conceptual/BPInternational/LanguageandLocaleIDs/LanguageandLocaleIDs.html for more information on naming your language-specific directories.”