Perish song bug :(

[Former user]

Okay. I was using the Delta Liepard in battle and it learned Perish Song. I then went into my secret base and used the trainer thing. I used perish song and Liepard and Audino died. Liepard was the only pokemon in my party at the time, but it did not send me to a pokemon center it just resumed in the secret base. I then was like "wtf" and so I went to the grass and tried to battle to see what would happen. My client crashed. I had just beaten the last battle of 1.1 with Taen. Sad Face :( Please fix bug Mr. Dev Senpai? ;-;