Suzysue

Hi Everyone I have cctv and can playback several days ok on my PC (under the NVMS- 1000 app) but on my smart phone I can suddenly only playback until midnight each day (I can normally playback several days). Please advise what do I need to do to correct this problem. Bear in mind, I have intermediate tech knowledge but would appreciate step by step assistance if possible. I have access to web client too if that helps. Unfortunately my CCTV guy isn't local and isn't proving very helpful! Many thanks Sue