Submission failed: UnicodeDecodeError

I uploaded the .json file using the dropbox link. I am getting the following error:

Starting Evaluation…
Evaluating for Test Phase
Reading gt json …
Reading user son …

File “/tmp/tmpu7egv7i7/compute/challenge_data/challenge_603/”, line 114, in report_Semantic_Segmentation_JSON
user_dict = json.load(f)
File “/usr/local/lib/python3.7/json/”, line 293, in load
return loads(,
File “/usr/local/lib/python3.7/”, line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0x8b in position 1: invalid start byte

I am using python 3.6 version for running script.
Please help to fix it.

I tried to load the json file in my system (Ubuntu 16.04 ). I got similar issue which was resolved by specifying encoding parameter to open a file. Similar to the stack overflow answer:-

Can someone check for the same in the evaluation file or help to resolve it?