I used to shop at the Fountain Valley store when I lived in CA. Looks like typical cash flow problems. This is what happens when you don’t pay your vendors, or drag them out way past the due date. They tire and quit selling to you. No product, no sales, no profit. Word gets around, it escalates, and goes downhill quickly. Even if they were struggling, California’s covid lockdown measures, was probably the final nail.
Official statement