It is more complicated and there no way to re submit a new application. As the application is part of the temporary public policy for Columbian and Hiatian which is closed after reaching its cap.
It seems that I have to try with separation and explain everything to IRCC since this program has a humanitarian aspect too and also try to find a way for filing for divorce.
Would submit any formal documentation of abuse with your explanation. Is this a legal separation? Legal separation would be much better. The fact that child custody hasn’t been resolved also could create issues since this is a recent separation from a marriage that doesn’t seem to have been resolved in any aspect. Are you in Canada and if so with what status?