My locked messages are gone

[CaseyLynn]

I was texting, everything was fine I locked my phone and the next time I looked at it all my messages in my inbox including my locked messages were gone and I don't know where they went. I had over 100 from one person and I would like to get them back if possible. I was wondering if it had something to do with low space. I keep getting low data application messages or something like that and I wonder if it had something to do with that.