But what if I do have insurance?
Then you should follow the instructions in the letter and contact your company or agent about the problem. Ask your company to file a notice of coverage with the DMV electronically.
All that trouble, even though I am insured. But no can do. Any pointers on what I shouldn't do in my situation?
Do not use your vehicle if your insurance coverage is cancelled, even if you think it is a mistake and keep the plates while you resolve a problem with your insurance company.