Engine immobilizer system will not let me start car

Hello 2CarPros, I have a the car listed above it is a 2004 LE model with a V6 engine with over 100,000 miles on it. It is automatic with power steering, windows, and locks. It has an engine immobilizer system and a key chain keypad for opening and locking the doors remotely. I put the key in the ignition and the indicator light started flashing and making a low noise (not the loud panic alarm sound). I pressed unlock and lock repeatedly and finally it stopped. I tried to start the car but there was no power at all. Maybe engine immobilizer system is not really shut off. I do not know if the transponder chip in the master key has gone bad or if the key less remote has gone bad or needs a new battery. Maybe the car battery needs charging. When I opened the car door just now, no lights came on at all. But if the immobilizer system cuts all the power that might be why the lights didn't come on. How can I tell what is the problem? Also, there a way to disable the immobilizer system that a layperson, actually a laywoman could do safely? In the manual it says that if you lose both keys you would have to replace the entire system. But there must be a way to just deactivate it. I cannot afford to replace anything. If I could deactivate it I could just use the club for security tuntil times get better. If anyone knows an inexpensive workaround please post a reply. Also, post an alert if I am leaving out critical information. Thank you all.