IRS Asking for Taxes for Startup that Never Went Anywhere

I incorporated a Delaware C-Corp in 2023 for a startup project that never went anywhere. The company had no revenue, no payroll, no business activity, and basically just opened a bank account.

I ended up dissolving the company in Delaware in late 2024, but realized I never formally dissolved it in California. The California entity is still active, and I got an FTB notice saying my 2023 Corporate Tax Return is Late/says I’ll be fined 2k for it. I also noticed that the Delaware Franchise Tax for 2024 is still open.

I’m trying to understand what do I have to do next? Is it paying off my California taxes and then dissolving the company? I’m feeling a bit stressed and overwhelmed by this since I thought I already cleanly shut down the startup. Would really appreciate advice from anyone who has dealt with this before.