Car won't start

So if/when you determine the ignition switch is the fault ( brown and yellow hot in start, blue or both blue and black not hot in run ), You'll need to source a new switch ( some part stores have them ) and do the research on the R&R procedure.
Beyond the disassembly of the steering column, Aftermarkets replacement switches have a extra smaller gauge black wire poked into the wrong connector port and not used in your model. That complicates things a little, thus the research suggested. Several relative threads here.
Meanwhile... If you really need to drive the car, a toggle switch linking red to blue would temporary patch the failed portion of the OEM switch. I'm not a advocate of cut/spliced wiring but... in some cases we're forced to do what we have to do.