Just a suggestion, if filling the fuel tank doesn't solve the problem, you can rule out the pump by pressing the stop start switch to STOP/START switch to stop with your hand on the pump you can feel the pump trying to prime the engine.
Other than that start with the Trouble shooting suggestions in your manual and you'll probably find that everyone who suggests you should exercise it more often is correct and your fuel system if fouled from lack of use.
And should you need to have someone else do the work, it's about $125.00/ hour labor here in L.A.