Micra K11 does not start in wet/cold weather

Hello! My mother’s Micra has the following problems: As soon as it rained and the car was standing for a while (from half a day) he doesn’t jump anymore!You can org as much as you want but there’s just nothing, it sounds like the immobilizer isn’t out, but it’s out of LED!! The car has the problem since last winter,I once toiled for about 30-35 minutes last year (that’s NOT an exercise) then he jumped on! nmal tried and waits about an hour then sometimes, though again willingly, starts however as soon as you give gas again out…!! The car was already several times in the workshop however they could find nothing, only for good luck the spark plugs as well as the ignition cables changed… So someone has a tip, what that could be, because at the moment the car stands out again and does not want to again! Thanks and Gruss Olli