2007 Toyota prius red triangle

Hello everybody. Please help
I have a 2007 Toyota Prius 82,000 first thing that happened wasn't starting without putting the key in the ignition.
Then i changed the battery on the fob everything was fine for a while.
Next it was needing a jump for the 12v battery.
A few days after when backing out of the parking lot the car completely shut down.
But started right back.
After driving about 8 miles i parked the car went to school came back to drive home never started back up.
I jump started it incorrectly put positive on negative stupid of me.
It burned out the fuse assembly in the fuse box the 120v fuse by the 12 v battery and a couple more fuses.
i changed them all including the fuse assembly but the red triangle is still there.
took car to fill up air in tires at gas station it drove without no problems.
i disconnect the battery when it is parked.
today put the wires on the battery and the car is dead.
i get these codes (C13100, (P1E03)