This model does not appear to be for Pony, but for SD1.5.

Using it with Pony V6 and variants gives an error message like:

"

lora key not loaded: lora_unet_down_blocks_0_attentions_0_proj_in.alpha

lora key not loaded: lora_unet_down_blocks_0_attentions_0_proj_in.lora_down.weight

lora key not loaded: lora_unet_down_blocks_0_attentions_0_proj_in.lora_up.weight

lora key not loaded: lora_unet_down_blocks_0_attentions_0_proj_out.alpha

lora key not loaded: lora_unet_down_blocks_0_attentions_0_proj_out.lora_down.weight

lora key not loaded: lora_unet_down_blocks_0_attentions_0_proj_out.lora_up.weight

... "

And with the SD1.5 variant, it gives the expected output without error.