Adama is preparing to face Espanyol in the Europa League round of 32 tomorrow night.
He said, "I was there for ten years, I was young. I even had my chance in the first team. But that was not my decision, you should talk to them...
"There were situations in Barcelona that I did not like, problems with those responsible at the time, and I made the decision to leave. These are things that happened, which I will tell in due course, but for now I prefer to keep for myself.
Adama was also asked about Real Madrid transfer rumours and he added: "It wouldn't be a problem for me. I don't close any door, that's the reality. Now I'm happy here, I think we have a great team of people."