Sound file in Lexeme and Gloss sections in Flex lexicon and gloss

Hi everyone, I am a newbie and don’t know if it is OK to post the following question here. I am making a bilingual dictionary with Flex and Dictionary App Builder and I’m trying to insert a sound file both in the Lexeme field andin the Gloss field. Once I open the app in my phone the sound file that was inserted in the Gloss section appears as xxxxx.mp3, once I press on it the app crashes. Could anyone please help me sort this out?

Are you using LIFT or XHTML source file?
Did you create a writing system for the sound files?

Can you excerpt an section of the file that contains an audio link.