Error during instalation

[uskolor]

HI I can not install you tool in Burp .I see some error

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Traceback (most recent call last):
File "C:\Users\Joh\Downloads\programy\extender burp\ReconAIzer.v0.7.py", line 10, in
import json
File "json/init.py", line 108, in
File "json/decoder.py", line 24, in
File "json/decoder.py", line 18, in _floatconstants
LookupError: no codec search functions registered: can't find encoding 'hex'

at org.python.core.codecs$CodecState.lookup(codecs.java:1701)