Lg g4 messages disapearing

[AC Question]

i have the lg g4 through verison, have had it since it came out and it just started today delteting new messages, i use the message plues app i bleive, the red app that came with the phone, my phone is not low on memory or anything, when i get a text the little banner pops up and i can read the message mostt of the time but when i open it up into the app the message just disapears, its happening more frequently and its very irritating, any help is appriciated, any qyuestions feel free to ask, i havent called verison yet, i plan on calling them but i feel they wont be much help