1kw Smps Feedback İssue

I made this circuit, I used ee55, I wound 14 turns in the primary and 5+6+6+5 turns in the secondary. 11 volt output per secondary

Everything is normal, but does not provide feedback. The zener diodes get hot when the trimpot is short-circuited. The r15 -1k resistor is open. But this is not working. I need to use it for Apex h900. I was supposed to get 56v+56v+56v+56v but the feedback didn't work
 

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