Unable to flash custom recovery in Samsung j1 ace

I am trying to use the TWRP custom recovery on my device but am unable to do so. First I made sure I had the latest ADB and Samsung drivers. Downloaded the TWRP .tar file which is compatible( I think so, its not the exact model number, which is SM-J110H) with my device. Then I proceeded to run Odin, connect the phone to the PC using an usb cable, and put the phone in download mode. Everything was working alright until I 'flashed'(Put the TWRP file in AP, clicked Start, the log showed 'All threads completed. (succeed 1 / failed 0) '). After that, my phone rebooted. Now, whenever I try to go to recovery mode or boot my phone, it just hangs and a red exclamation mark is shown at the top left. I have fixed it by flashing the stock firmware but would like to know why it doesnt work. Any help would be appreciated. Many thanks.