UKC av326BT - burned

Hello guys. I am prety new into this. I bought this cheap thing UKC AV326, but seems like I've short circuit the left channel, and the smoke machine was triggered inside.
I've opened it, and noticed one resistor 39 Ohms was burnt. Replaced it, but it burned again. No sound during burn tho.
Any idea where to start with this thing to repair it ?
 

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