Hi, I have Design a Relays Based AC Switch Board using STM8s003 and ESP01. When I connect even a small resistive load then the controller resets during relays switching.... i dont know whether where is the problem in my design?

[SKhan.4]

 >>The Board is working fine when there is no AC (220v) load Connected; but with AC Load Connected, then MCU resets during switching

Same type of switch boards are available online containing stm8 but i havent experienced these boards regarding such an issue and i also i dont know about there design.... my schematic and PCB is attached.

kindly tell me where my design need modification or correction...

Thanks:)