Invalid trailing UTF-8 octet at line 1 column 1

[fartem]

I installed extension on OSX Catalina and trying to verify some files with it, but in output showed this:

(/usr/bin/ruby): invalid trailing UTF-8 octet at line 1 column 1
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/psych.rb:456:in `parse'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/psych.rb:456:in `parse_stream'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/psych.rb:390:in `parse'
/Library/Ruby/Gems/2.6.0/gems/rubocop-0.82.0/lib/rubocop/yaml_duplication_checker.rb:11:in `check'
/Library/Ruby/Gems/2.6.0/gems/rubocop-0.82.0/lib/rubocop/config_loader.rb:235:in `check_duplication'
/Library/Ruby/Gems/2.6.0/gems/rubocop-0.82.0/lib/rubocop/config_loader.rb:221:in `load_yaml_configuration'
/Library/Ruby/Gems/2.6.0/gems/rubocop-0.82.0/lib/rubocop/config_loader.rb:42:in `load_file' /Library/Ruby/Gems/2.6.0/gems/rubocop-0.82.0/lib/rubocop/config_store.rb:23:in `options_config=' /Library/Ruby/Gems/2.6.0/gems/rubocop-0.82.0/lib/rubocop/cli.rb:88:in `act_on_options'

Rubocop normally starts and inspecting files from Terminal.

Ruby version: 2.6.3p62
Rubocop version: 0.82