Omega B doesn’t start at all, even normal!

Hello, I’m new here and would need some help…. First of all to the car, is an Omega B Caravan 2.0 16v 100KW bj 94 petrol. And yes SUFU has found a lot and still can’t get any further! To the problem: Since two days the Opel starts either normal or not at all?! Heist, if I’m lucky he starts normal and I can also drive normally, No problems or error messages. Yesterday to the shopping turned off and (after 15min) nothing more (starter turns, but not even the smallest stutter n), then let go and after about 500m he came again running and then starts again normal…. In the evening again a round without problems! I noticed then yesterday that he only muks when I start right away (not wait until the lamps go out) is however not clear to me why this should be bad with the petrol guy?! So yesterday worked the whole day without problems without problems… This morning in “Eile” of course too fast = dead = drag. Then pay extra attention and still after the 3 start again dead… Let’s mention that he ignites briefly at the start (only at the first attempt) on 2-3 pötten short run (5-10seconds) before he lies down then, then no more rain until towing (partly 500m-2km!) Have looked here and tried to work already before, I have the two relays (fuel pump and Einspitza. believe k43-44 they were called) changed times and also at the start bridged (each the wide) also with it no life sign… Towing… Fuel pump is strangely never to be heard, but go from the point of view, otherwise it would also cause problems after towing?! Everything else but also…. I don’t understand… Maybe someone here has had something similar? Whether it is relevant, I don’t know, but I parked the good last week with almost empty tank (shown still 130km left) on a mountain and when I wanted to leave again after an hour, I couldn’t meh r started (came only 2-3 times on 2-3 pötten then rest) had to drag him, then he ran again without any problems! Was there the first time that showed the error! Ohso, answers please not too technical, I am laie 😉 Mfg OSKAR