My lg g3 is patched

Hello

I had a problem with my LG G3 and wanted to see if I could help fix.

2 months ago I removed the root with the application SuperSU
and now I try it spin but trying with all methods, all give me error

I don't have TWRP and I'm afraid that if anything happens to my phone a brick or a nice paperweight fly
try with root stump and says this device is patched sorry
my android is 6.0
and I want to avoid re-install a kdz
give me some solution
even a root termporal

please help me

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