I have been trying to play my level in the Editor but everytime I click on play the level jump to the stratosphere and I have to move the camera back into position on the ground. How do I avoid this? Please treat me as a layman, I am not an expert in UE just a beginner.
do you have a player start anywhere up there? or character blueprint? or camera actor?
try rebuilding your level and see if it still happens?
try starting a new level on the default map and see if it still happens?
also, try looking at your Scene Outliner (usually upper right corner) and check to make sure you you didnt accidentally add anything to your level
Maybe your character is inside a collision volume?