unfortunately video has stopped. topic

Please can anyone help me fix this, the stock video app tells me unfortunately video has stopped anytime i try to open it. If i open a video from a file explorer or from quick pic it would work but for the past 2 days it doesnt even work at all even if i do it that way. Ive cleared the cache and even data but still no luck. I dont want to have to factory reset cos of that. Im using the s5 g900H rooted with xposed installed.

Any help would be duely appreciated. Thanks