Dear,

I just modify as follow
in file theme/sns_nova/scss/theme/_modules.scss

	.mycart {
		.content {
			right: -1px;
			left: unset;
			min-width: 358px;
			.block-inner {
				line-height: 1;
			}
		}
	}

=>

	.mycart {
		.content {
			right: -1px;
			left: auto;
			min-width: 358px;
			.block-inner {
				line-height: 1;
			}
		}
	}

Best Regards!