leak at quick connector

jalars8

Any suggestions on fixing a leak at a quick connector?  Attached photos show the connector up close and the bigger picture.  The up close shows the connector and another fitting on the right.  I am not sure what the purpose of the smaller fitting on the right is - seems like the tubing coming in from the right should just go directly into the quick connector - something I am not understanding.  I think the leak is at the junction between the two fittings.  

Grumpy_G

Somebody else had a similar issue recently. The connection is not pushed together correctly, the gray ring should not stick out that far. 

jalars8

Now that I look at that, it also looks like the gray ring is not quite straight and maybe that is part of the problem?