Needs to be fixed!

I love this game and have enjoyed playing it but I am getting frustrated very quickly. Today it would not let me log in for over an hour (both on and off wifi so I know it wasnt just my service). It disconnects and shuts down all the time also. Yesterday it kicked me out in a raid battle after I have just revived all of my Pokémon so as I got back in the game the battle was beginning and I was only left with my weak Pokémon. Then, again today I was just in the last battle I needed to take over a gym and it kicked me out again. Someone else drove up as it happened and claimed the gym before I could get it to reload and let me back on the game. Even though they were my teammates it would not allow me to leave anything there so I just wasted a lot of time and items for the second time today. It is fun to play but I walk away angry half the time I try and battle.

Tana94 about Pokémon GO, v1.37.2