@Ionela11 Can you take it one point at a time, so the crashing that should not be happening on any regular basis, from the link below say what you have and what you are seeing if anything!
This link below provides information about the coloured lights on the various hubs that can help to see what is going on! If the system is also Full Fibre then the lights on the OR/CF ONT also require to be looked at!
https://www.sky.com/help/articles/hub-lights-explained-start
