Is it possible to have multiple languages accepted by a DFA?
Revisit the definition of the language a finite automaton accepts: it is the set of exactly the words the automaton has an accepting computation for. All these words, but no others. This set is always unique.

Here, the accepted language does indeed have subsets


$\{ 00x \mid x \in \{0\}^* \}$ and
$\{  0x11 \mid x \in \{0\}^* \}$.


You will have to check if that are really all accepted words. This may be simpler to do after minimizing the automaton.