Unfit solution

I am Sagar, I came to Malaysia 8 months ago with a calling visa, but when I came here, I don't know what kind of medical condition it caused me to become unfit, so I have not got a visa yet. I have never taken any drugs in my life. I took pain medicine.maybe They find it and thought its drug .The company is saying that it is too late to get the visa, now what should I do?