Aubameyang's struggle for goals since he signed his new £250,000-a-week contract summarises Arsenal's problem with the talisman hitting just four goals in 12 matches in all competitions.
Speaking ahead of the game with Rapid Vienna, Arteta called on his attackers to improve their record in front of goal.
"Well, there are many factors, if you compare the Premier League with the Europa League, it's different," he said.
"If you look in the last few years, how the team has shared the goals in the Premier League, it's been quite limited. That's not an issue that is happening now, it's an issue that's been happening for years.
"That has to be resolved. To put almost 80 per cent of that responsibility on one man is not fair. As a team, we have to resolve that.
"As a team, we get into a lot of situations and sometimes the service is not right, sometimes the timing is not right, sometimes the last execution is not right but as a team there are certain things that we have to do better.
"We've been winning matches producing similar numbers but we've been very efficient. That sometimes is a state of energy, a state of mind, a state of confidence that you are doing everything right.
"When it gets to the moment you hit [the ball] and it doesn't hit the post, and if it does hit the post, it goes in. That's the difference.
"Football in the end is about the cohesion and the energy and belief of the team. When you lose games that gets touched and that's one of the beauties of this sport, how you react against that adversity."