How to Fix Poor Connection in Plug-In Vaporizer Heating Element Wiring?

I have a wall plug-in heat source for my vaporizer. It sends a current to my vaporizer whenever I press the button shown in the pictures below.The heating element for my vaporizer has very poor connection and will not actually activate unless I twist and contort the wire.
How might I re-establish this connection and fix the problem?

Looks like a tricky one.  The weak point of any wiring is where it enters a connector.If you can take the connector apart you might be able to reterminate the wires to whatever they are going to. If this is working on 110 or 22oV AC be VERY careful - in fact you'd be much better off buying a new one.  Some things aren't meant to be fixed.

Hi Morgan-Are you having to twist the wire where it enters the connector or are you having to twist the connector itself to get it to work?  It looks very much like an automobile cigarette lighter connector.  That type of connector often fails because the side contacts have lost their "springiness" and it doesn't hold the center contact tightly enough to make a good connection.If you think that might be the case,   you could put a small screwdriver in the slots and pry outward to increase the diameter slightly.-Rick