I had parked my bike outside my local grocery store and when I came out I saw that my lock had been tampered with. The keyhole where I insert my key was broken in half and the rubber coating was also cut down. Luckily I managed to haul it back to home but can't open the lock now.
How can I get it open?
Edit:it was a u lock and I got it open with a set of bolt cutters but now when I tried to ride I saw a plate on my chain broken and the removal pin on the bike chain tool that I have is also broken any way I can fix it?