explain me how to fix my root

[AC Question]

i use a moto g 2015

it says your device didn't start up succesfully. Use the software repair assistant on computer to repair your device. connect your device to your computer to get the software repair assistant.
but the real problem is that sometimes it doesn't says my phone is connected to HELP!!! i downloaded the flash succesfully but when i wanted to install the root(SuperSu) i had an error for the whole night. now i'm stuck with an broke phone plz help so fast as possible.and talk simple english i'm not rly good in english.
plz

leave an email or something so i can send u pictures to explain it more

 

[Rukbat]

1. SuperSU isn't ropot, it just lets you control which apps get root. su is root.

2. Use SuperSU to unroot the phone, then reroot it (as long as you haven't changed the ROM - later versions need different rooting apps).

3. If you include the whole question in your language, some of us actually type our answers into Google Translate and translate them to your language (After translating the question to English).