There are more than 10 error codes associated with Pokemon GO, each having a different cause of origin. Here is how you can fix those errors independently.
Here are top Pokemon Go Battle Tips that will help you to win battles, learn everything about how to start a battle, what are rewards, using shields, moves, etc.
Know which is the most powerful Pokemon in Pokemon Go? Here is the list of 10 best pokemons in Attack, Defense and Stamina to sustain in Battle and Raids.