Volvo C30 1.6 D from 2008 baffled/emergency need urgent help!!!!

Hello first of all, I am new here and have also directly the first problem, where I don’t know any more! My girlfriend bought a C30 about half a year ago. Unfortunately, after a short time the following happened: The engine control lamp went on and the engine went into the emergency run. We had been with the car in the workshop, they did everything imaginable and did, very many parts exchanged, renewed and filled up. to see at the bottom of the picture. But the car was still running. no. We are really at a loss and don’t know any more, maybe you can help us?! Sincerely P. Beker