Car Will Not Start problems of the 2019 Subaru Forester

The vehicle was stationary. I pressed the power rear gate open button on the driver side dash, but the rear gate didn't open, and the car just beeped three times. The beeps would happen every time I tried to press the gate button on the car or on the faub. I opened the access panel and manually opened the door, extending the door to full height. When I pressed the buttons on the car, the power gate would go down but would slam shut and the car would issue a long beep. When I pressed the button either on the car or the faub to reopen the rear gate, it wouldn't budge and the three beeps happened again. I then pressed the buttons on the car and held them passed the three beeps until the gate unlocked and I was able to lift it open. The gate closed again when I pressed the lock/gate close buttons, slamming shut as before with the long beep. No matter what I tried, I couldn't get the gate to open on its own ( with power). When I turned the car on, there was no indication that the rear gate was open, but when I put the car in drive and started to drive, the car continuously beeped until I stopped driving and put it in park. I turned it off and let it sit overnight. The next day, I tried to open the hatch as mentioned above and it still did not open, though I could manually open it if I held the buttons down beyond the three beeps. When I tried to turn the car on, though, it would not start. After I tried to start the car with the push button start, all the icons began flashing and clicking on the dash and control panels and the eyesight function was off and the car said to check vehicle function, all while flashing and clicking. When I pressed he button start again it all stopped. The parking pedal seemed very stiff and was difficult to press at all. The car would not start through starlink either, so now it sits in my parking lot until I tow it to a dealer tomorrow.