Why are not videos playing on my phone?

Cl
- in P series
2

A few days ago I wanted to watch a Youtube video (on the app) on my phone (huawei p10 lite) but it just loaded and there was no error or anything displayed it just did not start. Usually does not load video properly and starts immediately, because I have a good Wi-Fi. I did not think anything of it, but after two days I noticed that on any app (WhatsApp, Instagram, Facebook, Gallery,) no videos or gif's start but just load.

Sometimes only the sound starts in the gallery, but the screen stays black.

Go into Chrome and start a video on Youtube is the same but only since today (9.11.).

Be

Then you watch a video whose format your phone can't. Look, on the PC, which format it is - .mp4 or .flv or whatever? In your mobile accompanying note is, but which formats it can.

Cl

Thank you, MuLanHua2, for your answer, but I have solved my problem today. I just had to restart my phone just once after that everything went fine again. Probably the problem occurred because my phone is no longer the newest or functional